Dorothy Collingham, 88, of Peoria, AZ passed away, July 21, 2010. Born in Mohawk, Michigan, Dorothy moved to Arizona in 1986 from Ohio. Survivors include her children, Dale Collingham, Dorothy Collingham and Bob Heidenreich; brother Clayton (Betty) Wicketts; 3 grandchildren, 4 great grandchildren and numerous nieces and nephews. Memorial services will be held at 11:00 a.m., Wednesday, July 28, 2010 at the Good Shepherd Care Center Chapel, 10323 W. Olive Ave., Peoria, AZ.