While I was researching the Wulff’s, I came across this obituary for Mrs. Henry (Mary) Wulff on page 4 of the Freeport Journal-Standard, Monday, May 19, 1958. Her relationship to me: wife of 2nd great grand uncle.
Transcription of obituary:
Stockton—Mrs. Henry (Mary) Wulff died Sunday about 5:15 p.m. from a heart attack suffered at the home of her son, Arthur of rural Stockton.
The former Mary Bohnhoff was born Feb. 8, 1875, in Thompson Township, Jo Daviess County, the daughter of John and Henrietta Weich Bohnhoff. She married Henry Wulff Sept. 12, 1894, in Schapville. He died in 1951. Two sons also preceded her in death
Survivors include two sons, Arthur and Wesley, both of Stockton; five grandchildren; 10 great-grandchildren; and two brothers, Lewis of Galena and Fred of Springfield, Mo.
Funeral service will be held Tuesday at 2 p.m. in the Christ Lutheran church with the Rev John Hieronymus, pastor, officiating. Burial will be in Ladies Union Cemetery.
Friends may call at the Hermann Funeral Home until noon Tuesday and then at the church.
Forgotten History 
She would be my great great grandmother. Arthur was my great grandfather, followed, by Lyle Wulff who was my grand father. Thanks again for posting this. I need to compare more notes with you, but it looks like you are more involved than I am. Also my brother has all the notes I had on this stuff. But I know I had traced my roots back into the Bohnhoff’s as well. Please feel free to contact me if you’d like.
I am Donna Bohnhoff. Louis Bohnhoff from Galena was my grandfather and Anna was his wife.
I have alot of information on the Wulff’s, you can contact me.