There was only one school.It was originally a school for the Deaf and Blind located at Lansing, then when the deaf and blind were separated; the blind school remained in Lansing and the Deaf went to Flint. I have the 1900 census for Michigan school for the Deaf. There is an Adelina Harrmon born 1869. No John Hartman. Do you have Ella's maiden name? If you send me their birth dates, childrens names etc. I will search my Deaf records.