What a wonderful way you kept track of your research!
You mentioned not finding Harriet, the daughter of Ezra and Elizabeth (Quantrell) Robinson in 1860.
I believe she is Hariet Robison, 21 and a dressmaker, who is living in Brooklyn, Cleveland, Cuyahoga County, Ohio in the John and Mary "Barby" family (correctly Bearby). Mary Bearby's maiden name is Quantrail in the Cuyahoga County marriage index. She married first Almanza Bestor and after she was widowed, married John Bearby.
While I have no proof, I believe that Elizabeth Quantrell and Mary Ann "Quantrail" (I have only one source [marriage] of her maiden name) are sisters.
I got quite a list of the various spellings from the IGI, asking only for surname Quantril (not exact) married in Ohio.