Obituaries of residents from the District, Maryland and Northern Virginia.

Jacques Hadler, naval architect

Jacques Hadler, 99, a naval architect whose specialties included marine propeller and ship hull hydrodynamic technology, died Oct. 19 at his home in Silver Spring, Md. The cause was congestive heart failure, said a son, Jacques Hadler Jr.

Mr. Hadler was born in Arndt, N.D., and worked on ship design at the San Francisco Naval Shipyard early in his career. He later was a civilian research engineer and supervisor at the Navy’s research center at Carderock, Md., then known as the David Taylor Model Basin. He left in 1978 to become research director and dean at the Webb Institute of naval architecture in Glen Cove, N.Y., while continuing to live in the Washington area. He retired in 2011.

Thomas Kozar, art teacher, artist

Thomas Kozar, 79, a former high school art teacher in Montgomery County who also was an independent artist, died Oct. 23 at a hospital in Germantown, Md. The cause was complications from cancer and kidney disease, said a daughter, Kelly Pranger.

Mr. Kozar, who lived in Gaithersburg, Md., was born in Coal Center, Pa. He moved to the Washington area in 1965 and for the next 20 years taught art at Montgomery high schools, including Albert Einstein, where he started an art program for gifted and talented students.

In the mid-1980s, he started his own business, KOZ-ART, which did fine arts and graphic work for a variety of organizations. He did illustrations at parks and historic sites in the Washington area, including the C&O Canal, Antietam National Battlefield and Rock Creek Park. In 1994 he returned to Montgomery County Public Schools as an art teacher, and he retired in 2003 from Quince Orchard High School.

Bella Berman, health economist

Bella Berman, 95, a health economist with the National Institutes of Health in the late 1960s and 1970s and with the Agriculture Department in the 1980s, died Oct. 3 at an assisted-living center in Vacaville, Calif. The cause was cerebral atherosclerosis, said a son, Ron Berman.

Mrs. Berman was born Bella Uranson in Gladwyne, Pa., and had lived in the Washington area for 62 years before moving to California from Bethesda, Md., three years ago. She was a founding member of River Road Unitarian Church in Bethesda.

Joseph Froomkin, economist

Joseph Froomkin, 90, a Washington-based economist whose specialties included analyzing and projecting the needs for funding and financial aid in higher education, died Dec. 9 at his home in Chevy Chase, Md. The cause was heart ailments, said a son, Dan Froomkin.

Dr. Froomkin was born in Harbin, China, and grew up in Russian Jewish communities there and in Shanghai. He came to the United States at 20. He worked at IBM in White Plains, N.Y., before moving to Washington in 1966 as assistant commissioner for program planning and evaluation at the federal Office of Education.

In 1970, he left government service to run his own economic consulting business, Joseph Froomkin Inc. One of his projects in this role was the founding and running of the Department of Health, Education and Welfare’s Educational Policy Research Center for Higher Education and Society. He formally closed the business in 1990 but continued to do independent economic consulting.

Edward Johnson, accountant

Edward Johnson, 94, an accountant who worked for Southern Railway and the Interstate Commerce Commission before retiring in 1985, died Oct. 11 at a retirement community in Silver Spring. The cause was complications from prostate cancer, said a daughter, Jo Anne Johnson.

Mr. Johnson was born in Washington. In 1964, he joined the ICC after 22 years with Southern Railway. According to his family, Mr. Johnson was a golfer and had four career holes-in-one at four different courses in Maryland and Florida, where he vacationed in the winter.

— From staff reports