Gueisendorff Family IN Florida from Germany

I am trying to discover information on the family of my first husband, Richard Eugene Scott 1953 - 1978. His mother, Margaret L Gueisendorff (or Geisendorff) married Virgil Eugene Scott. Her parents, I met them once in 1972, Were Richard and Maggie Gueisendorff. I also recall she had a sister Sharon and a cousin Richard.
Virgil died about 1985 and although I believe Margaret has passed on, I cannot find anything on her, yet.
Because I have two sons, Ricky and David Scott, and a grandson, Jackson Scott, from this line, I would really like to include at least a few generations for the future generations.

My husband had a sister and three brothers. Christine Scott m- Dudley with son Mark Dudley. Patrick Dale Scott - deceased, Rex Barry Scott - deceased, Michael Scott last known to be married with 2 children in Alaska, in the US Air Force I believe.

ANY information would help.
Thank you
Barbara