wichita.edu
…Street was an important east-west thoroughfare in the city and Broadway was part of Highway 81, one of the main north-south routes through the Great Plains. Along 21st Street, businesses catered to local needs. There were supermarkets such as Mammel's. There were drug stores, such as Rumple's, seen here, where children got cold treats in the summer…
https://www.wichita.edu/academics/fairmount_las/history/local/NorthMarket/Postwar.php