Gary,
You asked the question and I sent an e-mail to the Director of Education at Bushy Run Battlefield. Here is his response,.. and request:
Hi Jack,
Sorry this reply has taken so long. The museum has been a one man operation since the middle of August (our seasonal went back to college) and it is very easy to get behind in emails and phone messages. Unfortunately there is not a known list or roster of soldiers that were at the battle of Bushy Run or served on the campaign that we know about. Bouquets two letters to Jeffery Amherst on August 5 and 6 do mention some names of officers that were wounded, killed, or did some noteworthy function during the battle. At the present time this is the only information we have to go on. Bouquet