!Documentation:
- 1870 U. S. Census. 7th Ward of Detroit, Wayne Co., Michigan.
See Joseph Holthoefer.
(Have copy)

!Documentation:
- 1870 U. S. Census, 7th Ward of Detroit, Wayne Co., Mich.
Page #125, Dwelling No. 8311, Family No. 932
Joseph Holthoefer, his wife Catherine, children Maria, Catherine,
Josephine, John, Anna and William listed by name.
(Have copy)
- "Marriage Records from Archives of Wayne Co. Mich"
Mich. Works Progress Administration 1936
Joseph Holthoefer and Kathrina Mullenbach married on Oct. 10, 1854 in
Detroit.
(Have copy)
- "Marriage Records from Archives of Wayne Co. Mich"
Mich. Works Progress Administration 1936
Joseph Holthoefer was a witness to a marriage at St. Mary's
Church, Detroit on 22 Nov. 1853.
(Have copy)
- Naturalization Paper on file in Wayne Co. Court House as 2nd paper.
Nov. 1st, 1856, Book 9, Page ____.
(Searched but was unable to locate papers).