"Photos 5 and 6 are from about 1953-54 or so. There is a vehicle from that period in the street. We know its before 1958 since the sign board in the stadium is advertising a Giants Night game, Giants vs the Phillies. I wonder who won."
5/24/1955 Tuesday night game vs. Philadelphia.
Phillies 6 - Giants 2
http://www.baseball-reference....I/PHI195505240.shtml
They didn't play on Monday 5/23 (remember when baseball teams had Monday's off regularly and the Cincinnate Reds started every season.) That picture may have been taken on 5/23.