Significant aviation projects he worked on included the Martin 2-0-2, better known as the "Martin Executive," a commercial airliner; Martin XB-51 medium jet bomber; and the Gemini space project.
In addition to his job at Martin, during the 1960s and 1970s he worked for Glackin Real Estate Co. in Bel Air, selling real estate at night and on weekends to help with the expenses of his burgeoning family.
After leaving the Martin Marietta Corp. in 1967, Mr. Mosko began working with residential builders. In 1977, he established his own firm, Triarch Construction Co., which he continued to own and operate until retiring in 1989.
In addition to raising her family, Mrs. Mosko volunteered with many Harford County community organizations that helped the infirm and the needy. She was a 40-year member of the Colonial Homemakers Club. She enjoyed baking cookies and making her trademark macaroni and cheese for her grandchildren.
"People of all ages considered her their friend. She had a warm smile and made each person feel welcome in her company," Mrs. Volker said.
"Should someone be in need, she was the friend who was quick to make a meal, offer a ride, or just sit and talk," she said.
Mrs. Mosko was an active parishioner of St. Margaret Roman Catholic Church in Bel Air, where she was a member of the Altar Guild for more than 40 years.
Mr. Mosko and his wife, whom he called "Charly," enjoyed one another's company and were seemingly inseparable whether it was sharing a cup of coffee at the local Roy Rogers or taking drives into the country looking for antique furniture that they enjoyed refinishing.
They enjoyed taking driving vacations across the country and looked forward to their weekly visit to the farmers' market in York, Pa., where they visited their regular stalls and then had lunch at the Cracker Barrel on the way home.
Both devout Catholics, they were daily communicants at the 6:30 a.m. Mass at St. Margaret's during the week, and returned on Sunday. If they were unable to get to church for physical reasons, they watched Mass broadcast from Notre Dame on TV.
A week before her death, Mrs. Mosko was diagnosed with stomach cancer.
"They were truly good people, deeply devoted to each other, their family and faith," Mrs. Volker said. "Along the way, they made strong and lasting friendships and had a wonderful life."
Their caskets stood side by side in their church Monday morning where a double Mass was offered in their memory.
"My brother, John, said, it was a "beautifully sad day,' " Mrs. Volker said. "They were then buried next to each other at Sacred Heart of Jesus Cemetery in Dundalk."
Also surviving are three sons, Steve Mosko of Thousand Oaks, Calif., John Mosko of Toms River, N.J., and Michael Mosko of Bethesda; two other daughters, Tess Gauthier of Bel Air and Elizabeth Ulrich of Scottsdale, Ariz.; Mrs. Kalb's brother, Joseph Kalb of Essex; her sister, Mary Furth of Abingdon; and 24 grandchildren.
