People : Robert Kowalczyk to Szymon Kowalczyk
Robert Kowalczyk 15 people
Roberta Kowalczyk 3 people
Rodney Kowalczyk 2 people
Ronald Kowalczyk 7 people
Rosemary Kowalczyk 3 people
Russell Kowalczyk 2 people
Ryan Kowalczyk 6 people
Samantha Kowalczyk 2 people
Sandra Kowalczyk 2 people
Sara Kowalczyk 7 people
Sarah Kowalczyk 2 people
Scott Kowalczyk 4 people
Sean Kowalczyk 2 people
Sharon Kowalczyk 3 people
Sherry Kowalczyk 2 people
Sophia Kowalczyk 2 people
Stacy Kowalczyk 2 people
Stanley Kowalczyk 14 people
Stefan Kowalczyk 2 people
Stella Kowalczyk 2 people
Stephanie Kowalczyk 5 people
Stephen Kowalczyk 8 people
Steven Kowalczyk 8 people
Susan Kowalczyk 9 people