No I am not related to the Fredericks family but in my research of the Gray/Grey family the Fredericks and the Grays married a few times through the generations.
Yes the book is bast on the history of the Fredericks in Australia. If you would like a copy of "The Fredericks Family Story", it will cost $2.00Australian. I will send it to you, just let me know?
Ivy Ethel Irvine (nee Fredericks) born October 1896 Jamberoo, NSW, daughter of Thomas & Minnie Fredericks and Great granddaughter of Peter Joseph Fredericks. Married Robert Irvine in 1920 & settled at "Clover Hill" Jamberoo. Valma Irvine daughter of Ivy & Robert, sill live at "Clover Hill" with her sisters.
I have the information on disc if you would like me to e.mail it to you?