Starting at left:
Louise Abeling Wetterau
John A Abeling
John's wife, Edna VanVliet Abeling
Back left: Clarence Wetterau
Back right: Florence Abeling
Far right: David Abeling
Location of the photo was John and Edna's farm in Perth NY. Estimated date of the photo is 1958 to 1964, based on the fact that David passed away in 1964.