My grandfather, Samuel Ingram Muller was born in 1892, in the US, I believe. He had a sister, Helen, who died in 1944 (Helen Muller Reisman), and a younger brother, Emil. He was a doctor in Astoria New York and died at age 40 in 1932. His mother's name was Regina, but I do not know his father's name or when they came to the US. Helen married Julius Reisman and had a daughter, Gertrude. Gertrude married Leonard Pollack and had two children, Lee Richard, and Helen Ruth. I am trying to find information about Emil and about Gertrude and her children.