When Horace Alfred Weimer was born on 3 May 1903, in Avilton, Garrett, Maryland, United States, his father, Edward Francis Weimer, was 29 and his mother, Sarah Cornelia Chaney, was 29. He had at least 1 daughter with Frances Helen Rankin. He lived in Frostburg, Allegany, Maryland, United States in 1930 and District 11, Allegany, Maryland, United States in 1940. He died on 1 July 1991, in Cumberland, Allegany, Maryland, United States, at the age of 88, and was buried in Frostburg, Allegany, Maryland, United States.