Ronald W. Derosier, 81, of Brockton, passed away Sunday, June 22, 2025 at the Brockton Hospital. He was the loving husband of Jeanne D. (Bussiere) Derosier.

Born December 19, 1943 in Brockton, he was the son of the late Samuel J. Derosier and Grace M. (Pelletier) Derosier. Raised in Brockton, he graduated from Brockton High School in 1962 and received an Associates Degree from Massasoit Community College.

He then served in the United States Army National Guard.

Ron was a Sales Manager for Pepsi products for grocery stores.

He was an avid Red Sox and Patriots fan and had a passion for gardening. Ron also enjoyed having his dog Molly at his side.

In addition to his wife, Jeanne; he is survived by his daughter Jennifer Heap and her husband Robert; his grandchildren, Grace Heap, Rose Heap and Jenna Heap; he was the brother-in-law of Gloria Voudren and her partner Jan Spinale, Dwayne Nida; he was the uncle of Lynne Flores and her husband Peter and Marie Tougas; he was the great-uncle of Ashley Cybulski and Harlow and Anthony Flores; he was the lifetime friend of Jane Westerlund.

Funeral from the Russell & Pica Funeral, 441 South Main St., (Rt28) West Bridgewater on Monday, June 30th at 9:00AM thence to St. Basil Chapel, 122 Park Ave., Bridgewater where a funeral mass will be celebrated for the repose of his soul at 10:30AM. Interment will follow in Calvary Cemetery, Brockton. Calling hours in the Russell & Pica Funeral Home on Sunday from 2:00PM-5:00PM.