Mark and Patricia McCloskey pulled guns on the protesters and were both charged in July with unlawful use of a weapon
The St. Louis City Counselor's office is still deciding whether to issue charges on the citations
It wasn't clear why just nine of the estimated 300 protesters were issued summonses
Nine protesters have been issued trespassing summonses for marching onto a private St. Louis street in June, a demonstration that prompted a couple to emerge from their home with guns to confront the demonstrators.
Mark and Patricia McCloskey were both charged in July with unlawful use of a weapon in the case that landed them a spot at the Republican National Convention last month.
Police spokeswoman Evita Caldwell on Friday confirmed that nine protesters have been issued summonses but said the St. Louis City Counselor's office is still deciding whether to issue charges on the citations.
The Rev. Darryl Gray, who led the protest, called the citations an attempt to intimidate peaceful protesters.