These are Ralph Friedrich's 8mm film home movies (about 20 minutes) chiefly of four of his five children (in order of age) Paul, Ron, Mary, Martha.  Oldest son, Don. shows up once in his high school band uniform (with little brothers in the boyscout uniforms) after performing in a Memorial Day parade, and we catch a second glimps of him tinkering with his ham radio transmitter in the front seat of the family 1957 Chevy station wagon.