What is the name of the man who shot William Lennon and what are the names of Lennon's children?

William Lennon was shot on August 12, 1969 by Chet Young, a deranged fan of the Lennon Sisters, the singing group made up by some of William Lennon's daughters. Young was a stalker that was obsessed with Peggy Lennon and felt that William Lennon stood in the way of them being together. Young shot Lennon in the parking lot of the golf range where Lennon worked as a golf pro and then shot himself.

William Lennon had eleven children. The four daughters that were the "Lennon Sisters" singing group:
Dianne (nickname Dee Dee), born December 1, 1939
Peggy, born April 8, 1941
Kathy, born August 2, 1943
Janet, born June 15, 1946

Plus seven other children, including:
Mary, killed in 1954 at the age of 16 months
Joe, born in 1957

I haven't been able to find the names of the other five children.

Sources:
https://en.wikipedia.org/wiki/The_Lennon_Sisters

http://www.maebrussell.com/1960s%20Terror/Lennon%20Father%20Killed.html

http://www.singers.com/jazz/vintage/lennonsisters.html

Younger brothers Kipp (Christopher) and Pat are currently performing as Venice/Pine Mountain Logs. They're great! Other brothers Dan, Bill and Joe used to perform as Lennon Brothers. Also sisters Mimi and Annie. And, of course, deceased sister Mary.