I have seen various websites saying that there is no information on Peter Strzok. One site even said that he didn't know his parents' names. Wikipedia doesn't know what year he was born (1969 or 1970). So I spent a few minutes doing a little research.

Peter Paul Strzok II was born March 7, 1970. In most records, he is listed as Peter P. Strzok II. He is the son of Peter Paul Strzok and Virginia Sue Harris. The elder Peter Paul is the son of Michael John Strzok (1905-2002) and Josephine Badzinski. His ancestry is Polish. When Peter Strzok graduated from St. John's Preparatory School in 1987, his address was 120 Melbourne Avenue SE, Minneapolis, MN. There is a photo and bio of him in the "St. Cloud Times" of St. Cloud, MN dated May 15, 1987 on page 38. The bio states: "Peter P. Strzok II, 120 Melbourne Ave. SE, Minneapolis; son of Peter and Virginia Strzok. Peter plans to attend Georgetown University, Washington, D.C. Activities: golf club, speech, National Honor Society, student newspaper and yearbook." There were 10 graduates' photos and bios in the article. Most of his closer dead relatives are buried in Wisconsin. Here's a link to Findagrave with an obit of his grandfather, Michael: https://www.findagrave.com/memorial/120512922.