Kammala wannan jumla: A shekara ta 1737, Elliot ya zama babban jami'in na 2 na Horse Grenadier Guards, wanda aka sanya shi Lieutenant-Colonel a 1741. Ya yi yaƙi a duka biyun.
Dettingen da Fontenoy, amma ya yi murabus daga mukaminsa a 1746. Ɗan 'yar'uwarsa mafi girma, George Augustus Eliott (daga baya Lord Heathfield, mai kare Gibraltar), yana ɗaya daga cikin jami'an da ke ƙarƙashinsa a cikin Rundunar Sojoji na 2 na Horse Grenadier Guards.