Frank Singer, Sr. was the first husband of my father-in-law's "Aunt Sally." Sally was actually Salome Franckowiak. Sally and Frank were married in Detroit, Michigan October 18, 1899. Frank was a machinist, although I don't know what company he worked for.
Unfortunately, I don't know the circumstances of the "accident" but he was killed by falling lumber that crushed his face, and possibly his skull, on April 12, 1910. It's possible he was at work when this happened, although the Detroit News and the Detroit Free Press did not elicit an obituary or report of the accident. He left his wife and four children. It appears the fifth child was born after Frank's death.
Copyright 2011, ACK for Gene Notes