No, I didn't see anything there that said anything about genealogical searches. It's just a small museum with a movie presentation at timed intervals maintained by the National Park service.
I am not sure the park maintains records of any depth, but the local libraries in Concord and Lexington and the respective historical societies can probably give you a lot of assistance.
Former intern here, both visitor centers have a copy of the muster rolls for the various militias that fought on that day, but you will need to ask the ranger on duty to see them.
Not on site
That is a very interesting question. I would imagine that the historical society may or may not have the information that you are looking for. Good luck in your research.
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