I'm not very good at plant ID's often even with plants I know, but I think 3941 is wild grape and 3938 is neither bindweed nor mile a minute, but wild buckwheat.
Mile a minute leaves are just like little triangles.
https://njaes.rutgers.edu/images/photos/ ... e-full.jpg
Bindweed has the arrowhead shaped leaves, but the tails of the arrowhead are rounded and meet
https://inlanding.files.wordpress.com/20 ... h-fife.jpg
wild buckwheat has less rounded tails with more space between them:
https://www.agf.gov.bc.ca/cropprot/weedg ... es/78a.jpg
If they flower, they become very distinctive.
Your final picture is really stumping me. There's only a few things I know with big five part leaves like that and yours is not quite any of them. (Candidates would be Virginia creeper, ginseng, buckeye tree). Is yours a vine?