Henry Ford's Service Department

[Nolff2]

I'm looking for information, oral history, photos or reports on members of Henry Ford's Service Department run by Harry Bennett from the time period of 1935 until 1943. My grandfather was a body guard for Henry Ford in some capacity. I'm trying to find information. He left Detroit in 1943, and was followed by Ford's men and beaten severely, with the threat of death if he told anyone about what he knew. My grandfather never told anyone until he was in his 80s about working for Ford. We wonder what he knew. My grandfather died in 1995. I would like to know if others have stories of their ancestors working for Henry in this capacity.