First given name from Joshua Keijsers’ Family Tree as at May 2020.
Joshua is the x2 great grandson of Walter and Edith Minnie (nee Oliver) Chatterton through their daughter Beryl Minnie May Chatterton.

Second initial of “L” from “P & JL Martin Family Trust” found here in May 2020:
https://angusnz.com/our-people/breeder-list/king-country-taranaki/