The town was founded as an unincorporated village and named after the yellow prairie grass that surrounds the area. Yellow Grass has a primary agrarian economy, with many residents working as farmers, or providing services to farmers. At the end of WW I, returned men gathered at each other's homes for social evenings. They were also very active with sales of Victory Bonds and organizing sports days, memorial services and other projects in the community. On November 17, 1945, they became a Branch of the Canadian Legion British Empire Service League #266 (now Yellow Grass Branch 266). Decoration Day has been observed at the Yellow Grass cemetery on a Sunday in June or July for many years. As a homecoming project in 1971, the Legion erected white iron crosses in a sacred place at the cemetery known as the Field of the Vanquished. The crosses bear the names of the service personnel who lost their lives and are buried overseas. Such crosses are also erected for all Veterans buried in the Yellow Grass Cemetery. A dedication cairn was later placed in this plot.
They no longer go to the Cenotaph in Allan Park, instead, they have a Cenotaph in the hall and a large cross where Legion members place poppies for the honored dead as their names are read aloud. The congregation then files forward to lay their poppies on the field of green.
