Hi Lenbudge,
My Great Grandfather is Charles Mace. My Grandmother is Kathleen (Kitty) Ada Woods (nee Mace). She's 95 and is the daughter of CSM Charles Mace (Border Horse Boer War 1885-1902). We have a photo of Charles in the Boer War. Thomas Mace his brother was also in the Boer War. I believe there’s another brother named John? Grandma remembers hearing that name but is losing her memories. The Mace family was originally from England.
Some background on Charles:
Charles went back to London England after the war - his wife’s name was Katherine. They had 9 children: Charles, William, John, Thomas, Mary, Bert, Ronald, Kathleen (my grandmother), & Len. All but Mary served in various wars and Len died in battle in WWII. I have pics of them all their respective families. Charles & his family eventually emigrated to Canada.
My understanding is Thomas stayed in South Africa and we have no info of him or his family or the other brother. Please connect and we can email more - unsure if this is the same Mace's you are looking for but the names sure fit. Would love to hear and fill in the blanks from your side if correct. Oddly enough I just googled Charles Mace Border Horse War yesterday for fun and found your post here

Cheers,
Karen