- Walter Olszewski (Poland) / Anna Koprouska (Poland)
15 children, 10 died before age 2. The survivors:
- Julia Olszewski (Poland) / John Demski
- Helen Demski (Baltimore)
- Mary Demski (Baltimore)
- John Demski (Baltimore)
- Clara Demski (Baltimore)
- Leonard Demski (Baltimore)
- Henry Demski (Baltimore)
- Edward Demski (Baltimore)
- Eva Olszewski (Poland) / Joseph Moran
- Walter Olszewski (Poland) / Ella
- William Olszewski (Baltimore)
- Bertha Olszewski (Baltimore)
- Ella Olszewski (Baltimore)
- Bertha Olszewski (Baltimore) / Frank Brown
- Rita Brown (Baltimore)
- Ursula Brown (Baltimore)
- Doris Brown (Baltimore)
- William Brown (Baltimore)
- Mildred Brown (Baltimore)
- Clara Jeanette Olszewski (b. June 17, 1909, Baltimore) / Russel Leo Barrett Sr. (Baltimore)
Note: Sons Russell Jr. and Richard are identical twins. Both served in the US Navy.
- Russell Leo Barrett Jr. (b. Nov. 3, 1930, Baltimore) / Eleanor (El) Louise Arnold (b. 1943; Baltimore)
- Children from previous marriages:
- Eleanor L. Arnold / Robert C. de Socio (Baltimore)
- Michael Robert de Socio (Baltimore)
- Mark James de Socio (Baltimore)
- Russel Leo Barrett Jr. (b. Nov. 3, 1930, Baltimore) / Anne McCracken
- Cindy Barrett (b. 1952, Baltimore)
- Richard Barrett (b. Nov. 3, 1930, Baltimore) / Joyce (Baltimore)
- Susan Barrett (Baltimore)
- Celina Barrett (Baltimore) / Charles Ettinger
- Brent Ettinger (Baltimore)
- Craig Ettinger (Baltimore)
- Jill Barrett (Baltimore)
- Brandon Barrett (Baltimore)
- Children from previous marriage:
- Richard Barrett (b. Nov. 3, 1990, Baltimore) / Francis
- Caroline Barrett (Baltimore)
- Betty Barrett (Baltimore) / Bill Grauling (Baltimore)
- Joyce Grauling (Baltimore) / Michael Carnes
- Carolyn Grauling (Baltimore) / Richard Gibbons
- Terri Grauling (Baltimore)
- Bill Grauling Jr. (Baltimore)
- David Grauling (Baltimore)
- Ronald Barrett (Baltimore)
