On the northeast corner of 3rd and Court was the Sherman Block, built in 1855 by Hoyt Sherman. B.F. Allen was a banker here and it was also the first home of Equitable of Iowa. Equitable was founded by F.M.
The term "supergroup" has been around since 1968, when it was most often used to describe the formation of the rock band Cream, whose members had previously starred in other groups. Since then, numerous supergroups have come and gone, though sometimes they prove to be alarmingly short-lived.