Hi,
I am going off of memory right now but my great-grandmother was Kate Iffland and she lived in the Schenectady, NY area. I do believe that there were others. She married John Budesheim before 1895 and I did find her in a census living with him. I will try and dig up and see if I have any records of any others. Please explain your connection to Iffland again.
Thanks, Rhonda