Surnames Z
- Zacharias, [?] (?-?) – doctor
- Zacharias, E. D. (?-?) – drug clerk
- Zacharias, John Forney (?-?) – doctor
- Zacharias & Craigen – dentists
- Zaeger, Ernest A. (?-?) – druggist
- Zalneraitis, Antonia (?-?) – medical student
- Zeh, Martin (?-?) – doctor
- Zeli, Martin (?-?) – doctor
- Zelinski, E. W. (?-?) – doctor
- Zell, Peter & Son (?-?) – druggist
- Zeller, Henry (1810, Aug. 17-1885, Jul.) – doctor
- Zelwis, Johanna T. (?-?) – doctor
- Zemp, E. R. (?-?) – doctor
- Zepp, James Albert (1856, Aug. 9-?) – doctor
- Zepp, Jesse (?-?) – doctor
- Zepp, Katherine (?-?) – nurse
- Zepp, Leonard (1845, Feb. 26-1926, Aug. 11) – doctor
- Ziegler, Charles Benjamin (1855, Jul. 8-?) – doctor
- Ziegler, John S. (1859, Aug. 17-?) – doctor
- Zimmerman-Ford, M. L. (?-?) – doctor
- Zinnbrock, William (?-?) – doctor
- Zitzer, John J. (?-1883, Oct. 30) – doctor
- Zoller, Christ. G.E. (?-?) – doctor
- Zoller, Frederick C. (?-1896, Feb. 2) – doctor
- Zollers, Charles H. (?-1816) – doctor
- Zollickoffer, D. W. (?-?) – doctor
- Zollickoffer, H. F. (?-1885, Sep. 30) – doctor
- Zollickoffer, Henry (?-?) – dentist
- Zollickoffer, William (?-?) – doctor
- Zollicoffer, Henry (?-1895, Aug. 23) – doctor
- Zollicoffer, William (1793-1853) – doctor
- Zwanger, John L. (?-?) – druggist
- Zwanzger, John (?-1892, Dec. 14) – druggist