Henryk Lederman died in 1944.
Minna Lederman died in 1995.
William Lederman died on 1992-07-26.
D. Ross Lederman died on 1972-08-24.
Henryk Zieliński died in 1981.
Henryk Hechtkopf died in 2004.
Henryk Firlej died in 1626.
Henryk Minkiewicz died in 1940.
Henryk Łowmiański died in 1984.
Henryk Reyman died in 1963.
Henryk Hilarowicz died in 1941.
Henryk Józewski died in 1981.
Henryk Abicht died in 1863.