Lawrence Hiern Mercier, Sr.

Lawrence Hiern Mercier, Sr, known as Larry to his family and friends, was born on August 24, 1944, in New Orleans, Louisiana. He passed away on Saturday, February 14, 2026. Larry grew up in Baton Rouge and graduated from Istrouma High School. He earned his degree in Entomology from Louisiana State University.

Larry ran American Exterminators for over 30 years, then worked for both East Baton Rouge and Livingston Parish Mosquito Control before retiring. He was an avid car enthusiast, drag racer, gardener, and soccer player. He also coached numerous soccer teams over a span of 30 years.

Larry was preceded in death by his parents, Alfred Mercier and Maris Berault Mercier; and his wife of 53 years, Margaret Turk Mercier. He is survived by his children and grandchildren.

A celebration of life will be held from 12:00 p.m. until 2:00 p.m. on Sunday, March 15, 2026, at Resthaven Funeral Home, 11817 Jefferson Highway in Baton Rouge.

Family and friends may sign the online guestbook or leave a personal note to the family at www.resthavenbatonrouge.com