Lawrence Alexander Treger, 55, vice president for the operating properties division of the Rouse Co., died of a brain tumor Jan. 8 at his home in Crownsville, Md.

He had been with Rouse for 28 years. For most of that time he was in charge of Rouse-managed shopping centers that included Boston's Faneuil Hall and Santa Monica Place in Santa Monica, Calif.

Mr. Treger joined the company as a promotion director in San Antonio and was transferred to the Cherry Hill (N.J.) Mall to be its promotion director before moving here about 25 years ago.

He was a native of Hoboken, N.J., and attended Mohawk Valley Technical Institute. He served in the Air Force in Japan and in San Antonio.

Mr. Treger had developed several programs to involve shopping malls in community causes. One was a program called "Setting Free," which raised millions of dollars for the Muscular Dystrophy Association, of which he was a vice president. Hundreds of malls have participated in the program since it was begun in 1975.

Mr. Treger also helped to expand a competition that had been established by the Bel Canto Foundation to send promising young opera singers to Italy for study. He enlisted shopping centers to hold competitions in this country and Canada. The program now funds study for a dozen singers each year, making it one of the largest opera competitions on the continent.

Mr. Treger was active with the International Council of Shopping Centers, serving as an instructor at its management institute and chairman of several of its committees. Among those was a group that organized the Kids Identification Sign-Up Program for fingerprinting children at malls, part of a national movement aimed ultimately at identifying missing children.

Mr. Treger was chairman of the development committee of St. Mary's School in Annapolis, and a lector at St. Mary's Church. He had also served on the boards of directors of the YMCA in Howard County on Columbia's Interfaith Center.His marriage to Gwendolyn Mathews ended in divorce.

He is survived by his wife, Mary Ann Treger of Crownsville; four children from his first marriage, Lawrence Edward Treger of Silver Spring, Kathleen Treger and Christine Treger, both of Phoenix, and Susan Treger of San Antonio; his mother, Lee Conway of Bradenton, Fla.; a sister, Marlene T. Pollock of Portland, Maine; and two grandchildren.


Photogrammetry Expert

Everett L. Merritt, 78, an expert in photogrammetry who had worked for the Department of the Navy, operated his own company and done assignments for the U.S. intelligence community, died of congestive heart failure Jan. 7 at St. Mary's Hospital in Leonardtown.

Mr. Merritt was born in Fairview, Pa. and attended Mount Union College in Ohio.

He joined the Marine Corps in 1939 and during World War II directed photomapping units in the Pacific. He received a Bronze Star for performing this work under enemy fire.

After the war Mr. Merritt moved to Washington and until 1951 was head of the Research and Evaluation Division of the Naval Photographic Interpretation Center. From 1951 to 1957 he was a partner in the operation of Photogrammetry Inc. in Silver Spring. He worked for the government of Argentina in 1958 and 1959 as technical director of the Argentine Survey Operation in Antarctica and Tierra del Fuego, then in 1959 returned to the Washington area, where he became principal scientist with the Alexandria-based Autometric Operation, a division of Raytheon. This work involved assignments for intelligence agencies. He retired in 1976.

Mr. Merritt was author of "Analytical Photogrammetry," one of the earliest books on the subject, and of more than 100 research reports and 25 technical articles. He had received the Talbert Abrams Award from the American Society of Photogrammetry and the Fairchild Photogrammetric Award.

He did oil painting, woodworking, bookbinding, canoeing and sailing, and he built sundials.

Since his retirement he had lived in Ridge, Md. He had taught celestial navigation and astronomy at St. Mary's College.

Survivors include his wife of 45 years, Elaine Merritt of Ridge; four children, Brett Merritt of Reston, Barry Merritt of Gaithersburg, Bruce Merritt of Indianapolis and Blythe Salamonowicz of Manassas; two sisters, Margaret Mowry of Newark, Ohio, and Genie Kokko of Bradenton, Fla.; and four grandchildren.