[1] A traveler in 1864, John Ross Browne, wrote Grinnell's was six miles southwest of the hot springs of Agua Caliente, Arizona.

The skirmish resulted in the wounding of a German-born Union private, William Frank Semmelrogge (Semmilrogge), who subsequently recovered.

First, the burning of hay, not only at Stanwix but at five other former stagecoach stations along the Gila River east of Fort Yuma, delayed the California Column's advance to Tucson and Mesilla, the territorial capital of Confederate Arizona.

Before the Confederates evacuated Tucson, they also removed or destroyed the supplies gathered for the Union advance by Ammi S. White at the Maricopa Villages.

The stagecoach lines were abandoned in the 1880s when the Southern Pacific Railroad (SPRR) completed laying track to Tucson from Yuma.