There are no other soils in this family. The Brimfield , Cleveland , Elkmound , Hollis , and Kearsarge series in closely related families. Cleveland and Elkmound series are from outside of LRRs R and S. Brimfield soils are dominated by rock fragments of mica schist. Cleveland soils have less than 20 percent silt in the particle-size control section and receive 60 to 80 inches of precipitation annually. Elkmound soils are underlain by brown sandstone bedrock.
Hollis soils have rock fragments of gneiss, granite, or schist.
Kearsarge soils have hue yellower than 7.5YR in the lower part of the B horizon and have rock fragments of phyllite, slate, or schist. Holyoke soils are nearly level to very steep and are on bedrock controlled hills, modified by glacial action. Slope ranges from 0 to 50 percent. The soils formed in a thin mantle of glacial till over bedrock. Some pedons have been modified by silty windblown deposits.