| NAME | BIRTH | RACE | PLACE OF BIRTH | REGISTERED | NOTES |
| Xaurekies, John | 4 Jul 1886 | Greek | Greece | Pueblo, CO | |
| Xilayonis, Gust St | 21 Dec 1880 | White | | Pueblo, CO | |
| Xinos, Jim | 1887 | White | Diakafto Greece | Pueblo, CO | |
| Xinos, John | 1891 | Greek | Greece | Pueblo, CO | |
| Xourafis, George John | 8 Jul 1899 | White | | Pueblo, CO | |
| Yagi, Seishi | 3 Aug 1884 | Oriental Asian | | Pueblo, CO | |
| Yagic, Andy | 28 Nov 1881 | White | | Pueblo, CO | |
| Yakopich, Anton | 18 Jul 1896 | | Colorado | Pueblo, CO | |
| Yakopich, Joe | 19 Mar 1894 | American | Colorado | Pueblo, CO | |
| Yale, Paul Louis | 29 Jul 1888 | Caucasian | Nebraska | Pueblo, CO | |
| Yalinas, Juan | 24 Jun 1881 | Mexican Indian | | Pueblo, CO | |
| Yamakami, Harry Hayamaton | 2 Jul 1881 | Oriental Asian | | Pueblo, CO | |
| Yamauko, Tadao | 22 Mar 1883 | Oriental Asian | | Pueblo, CO | |
| Yamisky, George E | 24 Apr 1887 | Caucasian | Pennsylvania | Pueblo, CO | |
| Yammick, John | 26 Feb 1889 | White | Austria | Pueblo, CO | |
| Yamnick, Louis | 2 Apr 1886 | White | | Pueblo, CO | |
| Yanazawa, Sadataro | 12 Sep 1879 | Oriental Asian | | Pueblo, CO | |
| Yandell, William Wilford | 22 Apr 1899 | White | | Bonneville, ID | Relative lives Pueblo CO |
| Yanes, Miguel | 29 Sep 1888 | | | Pueblo, CO | |
| Yankee, James Wesley | 8 Nov 1895 | Caucasian | Missouri | Pueblo, CO | |
| Yanopolus, Demetrie | 2 Jan 1875 | White | | Pueblo, CO | |
| Yarberry, Arthur Hallis | 13 Aug 1898 | White | | Pueblo, CO | |
| Yarberry, David S | 25 Feb 1897 | | Colorado | Pueblo, CO | |
| Yarberry, George Franklin | 12 Apr 1894 | Caucasian | Colorado | Pueblo, CO | |
| Yarberry, John Milton | 4 Aug 1887 | Caucasian | Colorado | Pueblo, CO | |
| Yarberry, Joseph William | 17 Apr 1889 | Caucasian | Colorado | Pueblo, CO | |
| Yarberry, Rodney H | 1 Oct 1895 | Caucasian | Colorado | Pueblo, CO | |
| Yarberry, Roger Irving | 28 Feb 1883 | White | | Pueblo, CO | |
| Yarberry, Walter C | 18 Aug 1876 | White | | Pueblo, CO | |
| Yarbery, Walter Nelson | 8 Jan 1900 | White | | Pueblo, CO | |
| Yates, Homer Duff | 23 Nov 1890 | Caucasian | Missouri | Pueblo, CO | |
| Yatsko, John | 8 Jun 1874 | White | | Pueblo, CO | |
| Ybarra, Alfonso | 28 Jan 1894 | Caucasian | Mexico | Pueblo, CO | |
| Ybarra, Guadalupe | 12 Dec 1876 | White | | Pueblo, CO | |
| Ybarra, Jose | 17 Mar 1892 | Caucasian | Mexico | Pueblo, CO | |
| Ybarra, Ysidoro | 2 Jan 1894 | Mexican | Mexico | Pueblo, CO | |
| Yearicks, George William | 10 Jan 1890 | Caucasian | New Jersey | Pueblo, CO | |
| Yearshan, John | 7 Oct 1889 | Austrian | Austria | Pueblo, CO | |
| Yede, Conrad | 7 Sep 1896 | | Russia | Pueblo, CO | |
| Yede, Philip | 24 Dec 1899 | White | | Pueblo, CO | |
| Yee, Low | 8 Feb 1880 | Oriental Asian | | Pueblo, CO | |
| Yeisley, Chester Arthur | 8 Dec 1881 | White | | Pueblo, CO | |
| Yekin, Andrew | 13 Dec 1880 | White | | Pueblo, CO | |
| Yelich, Geo | May 1876 | White | | Pueblo, CO | |
| Yelovchan, Anton | 10 Jan 1892 | Caucasian | Austria | Pueblo, CO | |
| Yelton, Clarence Carlin | 6 May 1875 | White | | Pueblo, CO | |
| Yencich, Joe | 26 Sep 1876 | White | | Pueblo, CO | |
| Yenko, Louis | 2 Apr 1890 | Caucasian | Carniola Austria | Pueblo, CO | |
| Yeomans, Adelbert Phillip | 5 Apr 1874 | White | | Pueblo, CO | |
| Yerrich, Jerry | 15 Aug 1876 | White | | Pueblo, CO | |
| Yershin, John | May 1885 | White | | Pueblo, CO | |
| Yershin, Louis | 13 Mar 1888 | White | Austria | Pueblo, CO | |
| Yersin, Frank Jomes | 18 Oct 1890 | Caucasian | Austria | Pueblo, CO | |
| Yersin, Joseph | 7 Mar 1890 | Caucasian | Carniola Austria | Pueblo, CO | |
| Yingst, Charles Tomes | 7 Aug 1899 | White | | Pueblo, CO | |
| Yingst, Raymond H | 21 Jul 1895 | Caucasian | Pennsylvania | Pueblo, CO | |
| Yoder, William Cary | 26 Oct 1873 | White | | Pueblo, CO | |
| Yokie, Ludwick | 5 Feb 1894 | Austrian | Austria | Pueblo, CO | |
| Yoklich, John | 9 Aug 1879 | White | | Pueblo, CO | |
| Yokovicth, Joe | Mar 1879 | White | | Pueblo, CO | |
| Yong, Kook W | 1 Aug 1887 | Korean | South Korea | Pueblo, CO | |
| York, Charles James | 26 Apr 1878 | White | | Pueblo, CO | |
| York, Henry Leonard | 2 Oct 1874 | White | | Pueblo, CO | |
| York, Joe Martin | 18 Jan 1884 | White | | Pueblo, CO | |
| York, William | 7 May 1879 | White | | Pueblo, CO | |
| Yoshimura, Y | 15 Sep 1883 | Oriental Asian | | Pueblo, CO | |
| Yoshinaga, Isaburo | 2 Jul 1880 | Oriental Asian | | Pueblo, CO | |
| Yoshitake, Yoichi | 2 Dec 1895 | Japanese | Japan | Pueblo, CO | |
| Yost, Chas Andrew | 8 Dec 1874 | White | | Pueblo, CO | |
| Youmans, Raymond Arthur | 24 Mar 1886 | White | | Pueblo, CO | |
| Young, A C | 7 Sep 1880 | White | | Pueblo, CO | |
| Young, Allen William | 12 Jan 1878 | White | | Pueblo, CO | |
| Young, Arno August | 9 Feb 1876 | White | | Pueblo, CO | |
| Young, Charles Willard | 10 Feb 1877 | White | | Elko, NV | Relative lives Pueblo CO |
| Young, Chester Raymond | 2 Aug 1889 | American | Illinois | Pueblo, CO | |
| Young, Cliffe William | 16 Feb 1873 | White | | Pueblo, CO | |
| Young, Dewitt T | | Caucasian | Tennessee | Pueblo, CO | |
| Young, Earl Doyr | 29 Dec 1897 | White | | Pueblo, CO | |
| Young, Fred Angus | 10 Feb 1886 | White | | Pueblo, CO | |
| Young, George David | 10 Jun 1896 | W | Pueblo CO | White Pine, NV | |
| Young, Hebert E | 15 Mar 1887 | Caucasian | Colorado | Pueblo, CO | |
| Young, Henry Amos | 12 Apr 1874 | White | | Pueblo, CO | |
| Young, Ira King | 7 Mar 1884 | White | | Pueblo, CO | |
| Young, Jesus | 11 Jul 1884 | White | | Pueblo, CO | |
| Young, John J | 4 Jun 1873 | White | | Pueblo, CO | |
| Young, John Wesley | 15 Apr 1874 | White | | Pueblo, CO | |
| Young, John William Andrew | 16 Nov 1885 | Black | | Pueblo, CO | |
| Young, Kenneth Roy | 29 Oct 1896 | | Colorado | Pueblo, CO | |
| Young, Luchies Palmer | 14 Jul 1893 | White | Illinois | Pueblo, CO | |
| Young, Luther Clifford | 29 Jan 1900 | White | | Pueblo, CO | |
| Young, Rollie Otis | 14 May 1899 | Black | | Pueblo, CO | |
| Young, Thomas Raymond | 29 Jul 1886 | Caucasian | Indiana | Pueblo, CO | |
| Young, Warren H | 14 Jun 1887 | Caucasian | Colorado | Pueblo, CO | |
| Young, William Charles | 5 Oct 1887 | White | Wyoming | Pueblo, CO | |
| Young, William D | 16 Jul 1879 | White | | Pueblo, CO | |
| Young, William Ramsay | 22 Jan 1876 | White | | Pueblo, CO | |
| Youngren, Frederick | 9 Dec 1873 | White | | Pueblo, CO | |
| Youngs, Fredric Franklin | 30 Jan 1880 | White | | Pueblo, CO | |
| Youree, William Henry | 11 Sep 1888 | Caucasian | Texas | Pueblo, CO | |
| Yow, Harry Ng | 30 Mar 1893 | Mongolian | China | Pueblo, CO | |
| Yreb, Frank | 17 Sep 1888 | White | Carniola Austria | Pueblo, CO | |
| Yrishin, Jack Jo | 18 Jul 1894 | Austrian | Vienna Austria | Pueblo, CO | |
| Ysquierdo, Atanacio | Aug 1880 | | | Pueblo, CO | |
| Yun, Sam Yul | 14 Jan 1882 | Oriental Asian | | Pueblo, CO | |
| Yurich, Manc | 1873 | White | | Pueblo, CO | |
| Zabakovec, Egnace | | White | | Pueblo, CO | |
| Zabukovec, Joe | 17 Jan 1876 | White | | Pueblo, CO | |
| Zabukovec, Joseph | 27 Jan 1893 | White | Austria | Pueblo, CO | |
| Zabukovic, Louis | 2 Jun 1887 | Caucasian | Carniola Austria | Pueblo, CO | |
| Zagar, Jake | 10 Aug 1885 | White | | Pueblo, CO | |
| Zaharia, John | 25 Oct 1893 | Greek | Greece | Pueblo, CO | |
| Zahn, Gerold Dean | 17 Jun 1899 | White | | Pueblo, CO | |
| Zajc, Andy | 11 Nov 1877 | White | | Pueblo, CO | |
| Zaken, Pete | Dec 1893 | White | Austria | Pueblo, CO | |
| Zaklich, Frank | 28 Mar 1880 | White | | Pueblo, CO | |
| Zakrajsek, Matt | 24 Feb 1888 | Caucasian | Austria | Pueblo, CO | |
| Zakrajsek, Tony | 21 Jan 1884 | White | | Pueblo, CO | |
| Zakrapisk, Antono | 24 Dec 1875 | White | | Pueblo, CO | |
| Zakrayah, Joe | 19 Mar 1882 | White | | Pueblo, CO | |
| Zakula, Mike | 15 Mar 1885 | White | Bosnia | Anchorage, AK | Sister lives Pueblo CO |
| Zakula, Mike | Jul 1881 | White | | Pueblo, CO | |
| Zalar, Anton | 25 Jan 1892 | Caucasian | Carniola Austria | Pueblo, CO | |
| Zaletel, Frank | 5 Aug 1878 | White | | Pueblo, CO | |
| Zaletel, John | 27 Jun 1887 | Caucasian | Carniola Austria | Pueblo, CO | |
| Zaletel, Matt | 4 Sep 1897 | Caucasian | Carniola Austria | Pueblo, CO | |
| Zamora, Ambrocio | Mar 1900 | White | | Pueblo, CO | |
| Zamora, Jesus | Jun 1882 | White | | Pueblo, CO | |
| Zamora, Pedro | Jun 1886 | White | | Pueblo, CO | |
| Zampera, Boza | 25 Dec 1874 | White | | Pueblo, CO | |
| Zampoleno, Vincent | 5 Apr 1890 | Caucasian | Italy | Pueblo, CO | |
| Zanetell, Henry | 18 Mar 1897 | | Colorado | Pueblo, CO | |
| Zappanti, Martino | 4 Dec 1878 | White | | Pueblo, CO | |
| Zara, Tony | 26 Mar 1889 | Caucasian | Italy | Pueblo, CO | |
| Zaragaza, Daniel | 20 Jul 1890 | Mexican | Mexico | Pueblo, CO | |
| Zarlenya, Allesandro | 3 Oct 1888 | Caucasian | Italy | Pueblo, CO | |
| Zarn, Harry | 25 Feb 1900 | White | | Pueblo, CO | |
| Zarn, William G | 22 Apr 1892 | Caucasian | Colorado | Pueblo, CO | |
| Zaske, Carl Fred | 2 Mar 1899 | White | | Pueblo, CO | |
| Zavala, Febronio | 10 Jun 1884 | Mexican | | Pueblo, CO | |
| Zavala, Leopoldo | 15 Nov 1894 | Caucasian | Mexico | Pueblo, CO | |
| Zavala, Luciano | 7 Jan 1882 | White | | Pueblo, CO | |
| Zavlanos, Nick | Jan 1877 | White | | Pueblo, CO | |
| Zavodja, Joseph | 1895 | Caucasian | Croatia Austria | Pueblo, CO | |
| Zavodja, Rade | Feb 1880 | White | | Pueblo, CO | |
| Zayac, Floryan | 16 Jul 1885 | White | | Pueblo, CO | |
| Zazneta, Minuel | 3 Oct 1884 | White | | Pueblo, CO | |
| Zbachniak, John | 29 Jun 1874 | White | | Pueblo, CO | |
| Zbasnik, John | 27 Feb 1882 | White | | Pueblo, CO | |
| Zeiger, Robert Louis | 12 Jun 1882 | White | | Pueblo, CO | |
| Zele, Jacob | 2 Jul 1888 | Caucasian | Carniola Austria | Pueblo, CO | |
| Zele, Joe | 24 May 1876 | White | | Pueblo, CO | |
| Zelhaver, Leonard Anthony | 28 Apr 1892 | White | Colorado | Pueblo, CO | |
| Zeller, Joseph Edward | 23 May 1881 | White | | Pueblo, CO | |
| Zeller, Steve | 14 Aug 1883 | White | | Pueblo, CO | |
| Zemke, Frank Willian | 21 Jan 1891 | White | Pennsylvania | Pueblo, CO | |
| Zemlik, Joe | 16 Apr 1876 | White | | Pueblo, CO | |
| Zenc, Frank | 8 Jun 1885 | White | | Pueblo, CO | |
| Zennanti, Salvatore | 7 Aug 1884 | White | | Pueblo, CO | |
| Zetz, Mile | 15 Oct 1882 | White | | Pueblo, CO | |
| Zgaissar, John | 13 Jul 1884 | White | | Pueblo, CO | |
| Zibar, Albert | 19 Aug 1892 | Caucasian | Bohemia | Pueblo, CO | |
| Zigar, Anton | 1874 | White | | Pueblo, CO | |
| Ziggich, Demitre | Dec 1885 | White | | Pueblo, CO | |
| Ziggich, Mike | 27 Nov 1889 | Caucasian | Austria | Pueblo, CO | |
| Zigich, Misko | Oct 1880 | White | | Pueblo, CO | |
| Zigich, Nick | May 1883 | White | | Pueblo, CO | |
| Zigich, Tso | 9 Sep 1889 | White | Serbia Austria | Pueblo, CO | |
| Zilnmar, Potter | 1 Apr 1887 | White | PolandRussia | Pueblo, CO | |
| Zimmerman, Joseph R | 6 May 1893 | Caucasian | Nebraska | Pueblo, CO | |
| Zimmerman, Louis | 27 May 1878 | White | | Pueblo, CO | |
| Zimmerman, Matt | 3 Jul 1888 | Caucasian | Austria | Pueblo, CO | |
| Zindahl, Robert F | 17 Feb 1887 | Caucasian | Minnesota | Pueblo, CO | |
| Zink, Robert Tilden | 20 Jan 1876 | White | | Pueblo, CO | |
| Zink, William Edgar | 15 Jan 1877 | White | | Pueblo, CO | |
| Zinnante, Natale | 3 Jul 1884 | White | | Pueblo, CO | |
| Zinno, Joe | 21 May 1886 | | | Pueblo, CO | |
| Zisk, John | 7 May 1891 | White | Russia Poland | Pueblo, CO | |
| Zisk, Leo | 1889 | Caucasian | Russia | Pueblo, CO | |
| Zitnik, Joze | 17 Jan 1889 | Caucasian | Austria | Pueblo, CO | |
| Zito, Tony | 21 Jun 1894 | | | Pueblo, CO | |
| Zito, Tony | 21 Jun 1894 | | Colorado | Pueblo, CO | |
| Zittel, William | 14 Feb 1883 | White | | Pueblo, CO | |
| Zivna, Frank John | 28 Nov 1898 | White | | Pueblo, CO | |
| Zivna, Louis | 12 Aug 1893 | White | Colorado | Pueblo, CO | |
| Zobec, Charles Frank | 15 May 1892 | Caucasian | Austria | Pueblo, CO | |
| Zobec, Frank | 15 Dec 1887 | Caucasian | Austria | Pueblo, CO | |
| Zobec, John | 11 Jan 1885 | White | | Pueblo, CO | |
| Zobec, John | 22 Oct 1883 | White | | Pueblo, CO | |
| Zolar, Joe | 19 Mar 1875 | White | | Pueblo, CO | |
| Zomparilli, Ongelo | 1889 | White | Italy | Pueblo, CO | |
| Zorn, Carl Jacob | 6 Nov 1887 | Caucasian | Colorado | Pueblo, CO | |
| Zovodja, Elija | Jun 1884 | White | | Pueblo, CO | |
| Zoyoe, Joseph | 18 Jul 1877 | White | | Pueblo, CO | |
| Zrt, Joe | 6 May 1885 | White | | Pueblo, CO | |
| Zuazua, Manuel | 30 May 1899 | White | | Pueblo, CO | |
| Zubar, Ogib | 5 Nov 1886 | Caucasian | Russia | Pueblo, CO | |
| Zubar, Pete | 29 Jun 1894 | Caucasian | Russia | Pueblo, CO | |
| Zuccil, Fred | 19 Dec 1886 | White | | Pueblo, CO | |
| Zuker, Jack | 28 Nov 1900 | White | | Pueblo, CO | |
| Zulian, Anex | 2 Jun 1875 | White | | Pueblo, CO | |
| Zumberger, Frank | 6 Jan 1884 | White | | Pueblo, CO | |
| Zunick, Pete | 30 Jul 1881 | | | Pueblo, CO | |
| Zunk, Herbert Milton | 19 Jan 1900 | White | | Pueblo, CO | |
| Zupan, Rev. Peter | 10 Jul 1883 | White | | Pueblo, CO | |
| Zupan, Tony | 15 Sep 1891 | Caucasian | Austria | Pueblo, CO | |
| Zupanchich, Martin | 11 Oct 1875 | White | | Pueblo, CO | |
| Zupancic, Frank | 4 Jul 1873 | White | | Pueblo, CO | |
| Zupancic, Joe | 15 Sep 1889 | Caucasian | Austria | Pueblo, CO | |
| Zupancic, John | 16 Dec 1873 | White | | Pueblo, CO | |
| Zupancic, Joseph | Jan 1885 | White | | Pueblo, CO | |
| Zupancic, Louis | Jun 1884 | White | | Pueblo, CO | |
| Zupancic, Louis | 12 Sep 1893 | Caucasian | Austria | Pueblo, CO | |
| Zupancic, Tony | 15 Jan 1896 | White | Carniola Austria | Pueblo, CO | |
| Zupancich, Louis | 23 Mar 1875 | White | | Pueblo, CO | |
| Zupon, George | 26 Jul 1893 | Slav | Austria Hungary | Pueblo, CO | |
| Zurcher, Paul | 3 Aug 1880 | White | | Pueblo, CO | |
| Zuska, Andy Peter | 20 Sep 1879 | White | | Pueblo, CO | |
| Zuvanich, J M | 6 Jul 1876 | White | | Pueblo, CO | |