Isaac H Bechtel, during the American War of Independence, served in the Pennsylvania Militia and participated in the Battle of Brandywine Creek (September 11, 1777) in which about 300 Americans were killed.  The battle took place near Chadd’s Ford, about 15 miles west of old Philadelphia.

http://www.bechtelfamily.com/site/isaacinrevwar.html

It’s also worthy of note that Isaac’s Brother-in-Law, Christian Stauffer, also served in the Colonial Militia during the War, being stationed in Pennsylvania, North Carolina and Georgia.  This is a copy of the Veterans’ Grave Registration Record indicating that Isaac was a Private in Captain Crumrine’s First Battalion and that the location of his burial is the Mennonite Cemetery in Bally, PA. 

The next 10 photos from the album:

 Photo 31: taken in Allentown, PA

 Photo 32: taken in Philadelphia, PA

 Photo 33: taken in Philadelphia, PA

 Photo 34: taken in Quakertown, PA

 Photo 35: taken by George Knecht, travelling artist, based in Allentown, PA.

 Photo 36: origin unknown

 Photo 37: taken in Boyertown, PA

Photo 38: origin unknown.  A notation at the bottom of the card says "Potter's Patent, March 7, 1865".

 Photo 39: taken in Philadelphia, PA

Photo 40: origin unknown