Following up to confirm that I've now connected the duplicates of Grandma Mary as well as Lucretia H. Knowles and Catherine Hilda Burrows to their correct parents, Maxwell and Jessima.
I'm now almost certain that for George Richard Knowles, Jr. and Eliza Turnquest Knowles we are showing the correct children. The one I have questions about is Healie Knowles, who I often see in trees but for whom I've never personally found records. I'll look around and see if I can find something. The only Healie I know of is the daughter of Manselle Darville and Sarah Knowles, who married Stanley Pinder. So this might be another misplaced person.