Son of Ludwig and Dorthee Bartolke Geldmacher. He was born in Schlewecke. Married to Johanne Sophie Caroline Charlotte Patz on October 26, 1834 in Holle, Schlewecke, Hanover, Germany. She passed away in Germany on September 18, 1866 in Schlewecke, Germany. He came to the US in about 1868.
NOTE; Historical information for Geldmacher and Bleckwendt Families were documented in a book entitled "Heinrich Sander, Sr. (1819-1883 and Related Families-Cape Girardeau County, Missouri" The book was compiled by Hazel Rennolds Sanders and a copy was donated to the Cape Girardeau Public Library in 1978. Most recent information was taken from obituaries.