I do not know if my info will be of any value to you.
My grandfather's name was Howard Harold Eberhard, b. ca. 1907, died 1971. My understanding is that he was originally from Pennsylvania, possibly of Amish background, but this has not been confirmed. He was the oldest child. He had a brother named Karl who was killed in 1944 Italy.
My grandfather was a Godly man, skilled at beekeeping, fruit and nut cultivation, gardening, Scouting, carpentry, watch repair, electrician--there was very little he could not do. He was not a talkative man, so my memories are of what he did rather than what he said. He worked at New York Ship in Camden, NJ, until 1967.
I often think about my grandfather. I have fond memories of him, a gentle, quiet man. I wish I knew more about him.