van Amburgh

We know that W. E. van Amburgh's parents and his wife were Russell-era adherents. Was his brother, George C. van Amburgh also a believer?

I have almost no information on George. He died sometime after 1930. That year he was a patient in a sanatorium in Washington State. About a decade earlier is was living in Gray's Harbor, Washington, the owner-manager of a Waffle House. I know something about his childhood and young adult education. But I do not know if he was an adherent. Do you?

Also, I need copies of letters and documents related to the family, preferably not the few widely circulated. I have seen those. I contacted a living relative, but have received no reply. Anyone?

Do we know what the S. in Daniel van Amburgh's middle name represents?