There is a Louisa A Bennett buried in Floral Park Cemetery,Broome County. She was living with her son Stanley R. when she passed away.
Stanley R and his wife Maggie are also buried there.
What I dont understand is when she was living with her son, Asa was living with his brother Chester (Kester) Gibson Bennett and still practicing as a physician according to census.
So Asa must be buried where his brother is buried "orchard Street Cemetery Sullivan county, or with Louisa in Broome County and maybe he doesnt have a headstone.
You could check with both of those cemeteries for records.
Hope this was of some help