Who were the Ruepings?

(1993 July, Rueping memoirs)
You asked me ... "Who were the Ruepings?"  And I could use this whole new tablet and more trying to explain this Fond du Lac family to you.  But just let me say they were a rich German family for whom my father worked while I was in high school.  [They owned the "Fred Rueping Leather Co., tanners and curriers" (per business card) in Fond du Lac.  They had several town houses, but in summer they shared an estate about two miles north of Fond du Lac, on the western shore of Lake Winnebago.  In 1917 Frank Parsons became the caretaker and landscape gardner of their estate, when Polly had completed 8th grade in Green Lake, and he continued in that position well into the 1920s.  Polly recorded her extensive memories haphazardly as they came to her; I have reorganized and tacitly amplified them.]