Jensdad,
Whilst not agreeing, I respect your opinion and have no intention of administering the earful treatment.
However, the point is that the dog had a name which was considered to be generally acceptable at the time and it is not necessary to change its name now. As was pointed out in an earlier post; a capital 'N' denotes a name/proper noun or whatever, whilst a small 'n' is a word accepted to mean a group of people of a certain ethnic grouping and one which most people would eschew using NOW - but not THEN.
Some portraits of Isambard Kingdom Brunel have been retouched to remove his cigar! It's not necessary to rewrite/redraw history. Tony Blair made various meaningless apologies for what were - after all - the social mores of the time; absolutely pointless.
Old Duffer
PS 'Forget' I'm neither that clever nor that sneaky!!