___________________ ______________________|___________________ _Robert Mathew ROY __| | | ___________________ | |______________________|___________________ _Barton Alexander ROY ___| | | ___________________ | | _Alexander BLACK _____|___________________ | |_Dorothy Elva BLACK _| | | _Duncan MCCRIMMON _ | |_Mary Jane MCCRIMMON _|_Ellen MCARTHUR ___ | |--Mark ROY | | ___________________ | ______________________|___________________ | _____________________| | | | ___________________ | | |______________________|___________________ |_Brenda Catherine ROACH _| | ___________________ | ______________________|___________________ |_____________________| | ___________________ |______________________|___________________