Try digitalPLUS for 10 days for only $0.99

Simon P. 'Sy' Jarosinski Jr., engineer

Simon Paul "Sy" Jarosinski Jr., a retired aeronautical engineer and former member of the Baltimore County Liquor Board, died April 30 of ischemic cardiomyopathy at his Timonium home. He was 90.

The son of a Baltimore City councilman and a homemaker, Mr. Jarosinski was born in Baltimore and raised near Patterson Park.

After graduating from Polytechnic Institute, Mr. Jarosinski went to work in 1940 for the old Glenn L. Martin Co. in Middle River, eventually becoming an aeronautical engineer.

Deferred during World War II because of the nature of his work, Mr. Jarosinski taught first-aid classes and also donated a gallon of his blood.

During his 46-year career, he worked on the development of numerous aircraft and missiles, including the Titan Missile system.

The longtime Timonium resident retired from Martin Marietta Corp. in 1986.

Active in Democratic politics, he was treasurer and a member of "Friends of Dutch," an organization that supported former Baltimore County executive and now U.S. Rep. Charles A. "Dutch" Ruppersberger III.

Mr. Jarosinski was appointed to the Baltimore County Liquor Board and was then reappointed in 1991 by then-Baltimore County Executive Roger B. Hayden.

He had served as president of the Springlake and Lutherville/Timonium Neighborhood Association, and also had been active with the Boy Scouts.

Mr. Jarosinski enjoyed reading, fishing and working on projects around his home.

"He could fix anything from toys to anything involving his house," said a daughter, Susan M. Treanor of Cockeysville.

He also liked spending time at a second home in Ocean City. He was a longtime Orioles and Ravens fan.

Mr. Jarosinski was a communicant of St. Joseph Roman Catholic Church, 101 Church Lane, Cockeysville, where a Mass of Christian burial will be offered at 10 a.m. Tuesday.

Also surviving are his wife of 68 years, the former Marguerite V. Weber; two sons, Paul F. Jarosinski of Olney and Mark S. Jarosinski of Mount Airy: another daughter, Anne M. Johnson of Bowie; two brothers, John A. Jarosinski of Baltimore and Gerard J. Jarosinski of Sparks; nine grandchildren; and six great-grandchildren.

Copyright © 2015, The Baltimore Sun