Hi,
Susannah Hiser is John Frederick Melber's (born 1869) mother, a relation of mine. Her maiden name was Ford, she married Frederick Melber, then went on to marry Fred Hiser.
Melber has been spelt incorrectly on the 1881 census, but clearly shows that by this time Susannah was married to Fred Hiser, they were living with John and Peter Melber (Fred Melber's children) as well as Fred Hiser's children Paul and Charles.
I'm guessing Frederick died and Susannah then met Fred H. I hope this helps, if you know anything more I would be grateful if you would share that info with me.
Many thanks,
Lorayne