Thomas, Robinson (Surveyor)A survey map of Elba Township in Gratiot County, Michigan, drawn in April 1831.JPEG2000aa29c122-7cbe-4b3b-af53-cd368180251bMI-T009N-R001WengDepartment of Natural Resources8888-003Public09N 01W - Survey Map of Elba Township, Gratiot County, Page 1 [Michigan]MapsMichigan--GratiotT009N-R001W1831