Is He Part of the Revolutionary War?

I would say yes. Militia were local military organizations -- that may or may not have stayed local at various times.

May want to fix the typo, if that is a direct copy from the text.

Jeffrey,
I did a quick search on the D.A.R. GRS and did not find Richard or Daniel.
I did however find Levin Boston 1747-1820 (matches some data that you have in your tree)
Might be of interest to you.
http://services.dar.org/public/dar_research/search_adb/default.cfm

Jeffrey,
That link I provided will take you to D.A.R. GRS
Just type in Levin Boston in the appropriate spaces and your Ancestor`s data will appear.

Dan Cornett Thanks for pointing out the typo.
V Yes I did a search on DAR and didn't come up with anything for Richard, but thank you for finding Levin.