There are a number of children's songs that mention the Boer War, the most famous of course being "Marching to Pretoria" (which began as a soldiers' song but became a children's song). My gut feeling is Ulster is the biggest source (from the memories of Alice Kane, e.g.).

My personal favorite was one that Oliver Sacks somehow learned,

One, two, three, relief of Kimberley
Four, five, six, relief of Ladysmith
Seven, eight, nine, relief of Bloemfontein.

And then there are music hall songs like "The Baby's Name":

The War, the War, the blooming war, has turned my wife insane,
From Kruger to Majuba she's the Transvaal on the brain....

Is there something in particular that people are seeking about the war?