Definitely. You can write on the leaves, hence the name “autograph tree”.

Yup fleabane, scientific name Erigeron. I can’t see which from this photo, but here is a page from GoBotany from the native plant trust (used to be New England wildflower society) with links to the various local Erigeron species. It might be Erigeron annuus. https://gobotany.nativeplanttrust.org/genus/erigeron/

Thanks. Jay, your #1 & #2 look correct. #3 is a question -- can't quite tell from searched images. #3 is in heavy shade/competition so not very robust. May try another pic of #3 to get better view of leaves.

Thanks iochroma. Interesting suggestion. Could be that "mine" are just going over, as they don't appear to be as 'round' but more flattened vertically. (If that makes any sense :-)) ) Fof