North Africa would be Tunisia, they were in the Medjez el Bab area at Banana Ridge and Gueriat el Atach 21st April to 13th May there is a large memorial to those who died in the area at Medjez el Bab.  I will take a look to see if I can find the officer from the 19th Field on there by visiting the CWGC (Commonwealth War Graves Commission) Site and do a bit if digging from there. Perhaps you might like to give it a try.

You will find much more on the site that I directed you to as unfortunately it is not possible to post pictures and documents on this site. You dont need the Army Records to get other information sorted while you wait for them.