Oh really that s v interesting I ve done a quick search at the only place I can think of where baptism records are readily available and disappointingly drawn a blank Going back to the birth registrations it seems that his parents uncles aunts were not so restrained when registering later children there is a Mabel H E H B B E V de L de O P T S Tollemache regsitered in Grantham Q2 1872 and a Lyulph Ydwallo O N E L T H E S E C N D P Tollemache Q4 1876 also in Grantham Extraordinary