Hautau, Winier, Wiborg

I am looking for information on the family of Frederick (poss. Friedrich-different spellings) Hautau and Emily Wiborg.My grand-aunt, Ada Belle McClelland m. William Hautau, son of Emily and Frederick. In the 1880 New York (Manhattan) census I found 4 children: Frederick, Clara, William, and Herbert.I also came across Herbert's WW1 Draft Papers.Frederick m. Carrie Hermann, Clara may have m. Edmund Hammond, William m. Ada McClelland, and Herbert m. Eva Schiffer.The marriage info is from Manhattan marriage records.Herbert and Eva had at least 3 children, and Ada and William had 1 son, Bryant.I have some info on this family from the 1880, 1920, and 1930 New York Census.Also, above, I noted the William's mother's name was Emily Wiborg.My gr aunt, Ada McClelland's maternal grandmother was Ann Elisa Wiborg.Since there are so few Wiborgs in the NY area - they may be related.I also found a daughter, Mabel for the Hammonds, b. in 1899.
Any help would be greatly appreciated.
Thank you,
Ceci (Felix) Walsh