Rule #1: no matter where you are or on what, always look cool.
Joseph looks like he was on a trail bridge desperately in need of repair. Bet he checked the rail first before leaning against it. He’s wearing a panama hat and a suit with ‘plus fours’. The breeches extended 4 inches more below the knee than traditional knickerbockers, hence the name. They were very popular in the twenties as sportswear, especially for golf. Swing dancers adopted them in the 30s and 40s. He’s wearing plain white socks here but ‘plus fours’ popularized a slew of patterned socks like argyles.
This is a small picture, 2″ 1/4 x 3″ 1/4. The man is IDed on the back, the picture dated June 1927.