anglers atlas has a topo map online. Little Marten is on the north side of Marten Lake rd (it's really the river part), and Big Marten is on the south side of the road.
Not much info on Bruce of McPhee... you can get a fantastic area map at the Rock Pine Restaurant in Marten River, or go online and check out the "friends of temagami" website for the Ultimate Map, it's a really good wall map, but it's huge. You can get it a Lefevres in North Bay. Both those updated maps have trails, camp sites etc etc