Thanks GR2.
"& can but" were my first thoughts but I could not make sense of that when the phrase was inserted into the text flow. There appears more text to the right of "can but", which looks like a y or j, but I am struggling to think what it might be that makes sense in the context. This made me think it might be something else and that the &c was an etc rather than "& c". Also the "c" is not joined to the "a", the "a" is not joined to the "n" but the "n?" is joined to the b.
Assuming "& can but" is correct, here is the whole sentence with "and can but" added to the text flow:
When I consider the integrity of my grandfather as a plain friend; that my father attended Friends meetings and was I believe pretty well convinced of Friends principles; I was not 7 years old when my Father died and can but

?? there seemd a seed of god in him, I humbly trust it will be so. Thy son Henry seemd a serious lad of a thoughtful turn of mind.
Any suggestions as to what truncated word after but is would be appreciated. Thanks, Peter