Bought a oil painting on canvas at an estate sale.

We bought this painting at an estate sale in Upstate NY.  It looks like the season is changing from autumn to winter because the trees are losing their leaves.  There are 4 people sitting by the water on the ground and there is a lake and mountains in teh background.  It is signed with an initial and what looks to be the last name BRAUR.  The first initial could be a L, K, or W.  We can't make it out.

Good