I am searching for two 2nd. cousins & their families/ancestors. Robert {geologist] & Ivor [architect] Cunningham born in Bexley Heath Kent  to mother Mary nee Richardson. Mary originally from Bishop Auckland Durham had 2 sisters Elizabeth & Isabel, born late 1800s Father Robert Richarson. Any info please contact . Thanks

P.S.Elizabeth[Betty] & Mary were both school teachers in the Kent area in the 30s & 40s.