Hopper was named manager of the year with the Royals in 1946 and with the Portland Beavers of the Pacific Coast League in 1953.

"Dudy" Noble's 1924 team that won the last of A&M's six baseball championships in the Southern Intercollegiate Athletic Association.

On July 17, 1927, Hopper hit four home runs in a game for the Danville Veterans of the Illinois–Indiana–Iowa League.

[8][9] That year Jackie Robinson, the first black player to integrate baseball since the 1880s, entered the Dodgers farm system and was assigned to the Royals.

[9] Robinson reported that Hopper treated him well, and the Royals won the Governors' Cup as the International League champions.

The Sporting News named Hopper the Manager of the Year for all of minor league baseball that season.

[14] From 1952 through 1955, Hopper managed the Portland Beavers of the Pacific Coast League (PCL), which at the time was unaffiliated with an MLB franchise.