Ceremonies at the Ambuscade marked the bicentennial of the country in 1976 and the bicentennial of the Sullivan Campaign in 1979. County Historian M. Patricia Schaap was chairperson of the observances in 1979 and organized a series of speakers and events at Groveland and Leicester. An additional inscription was engraved on the west side of the monument in honor of the occasion.

A significant event occurred in 1996 when the name of yet another fallen soldier was inscribed. After extensive research it was determined that Benjamin Wheeler of Northumberland, Pennsylvania, was among those killed on the site in 1779. This fascinating discovery after two hundred and seventeen years called for a solemn ceremony complete with color guard, a gun salute and speeches to pay tribute to this man.

Groveland Town Historian Larry Turner has been a strong advocate for the park for many years and has appealed to town, county and state representatives for increased recognition for this historic site. The officials have taken notice and have invested a great deal of time and energy in many recent improvements.