Jacqueline R. Crocker, a retired Chesapeake & Potomac Telephone Co. of Maryland customer representative, died of heart failure Thursday at Traditions at Mill Run, a retirement community in Hilliard, Ohio, where she had lived since 1995. The former Lochearn resident was 74.

Mrs. Crocker worked for C&P; for 30 years, beginning in 1958. She also held several elected union positions with the Communication Workers of America.

Jacqueline Regina Jacobs was born in Havana. In the early 1930s, she moved with her family to Virginia and later to Baltimore. She was a 1946 graduate of Western High School and studied piano at the Peabody Conservatory.

She became a U.S. citizen in 1946, and worked as a model in the early 1950s in the fur department of Hecht Co. An accomplished floral arranger, she also operated a floral design business, specializing in weddings.

She had also been active with the Boy Scouts and Girl Scouts.

She was a former communicant of St. Charles Borromeo Roman Catholic Church in Pikesville.

A funeral Mass was offered yesterday in Hilliard. Plans for a memorial Mass in Baltimore were incomplete.

Mrs. Crocker is survived by her husband of 50 years, Mervyn S.J. Crocker of Hilliard; three sons, Stuart Crocker of Altoona, Pa., Daniel Crocker of Delaware, Ohio, and Michael Crocker of Long Valley, N.J.; a daughter, Mary C. Zwaig of Baltimore; a sister, Elizabeth Buechner of Baltimore; and nine grandchildren.