Koromo,
Sounds as though it was quite a fashionable thing to do at the time, then, not uncommon. Come to think of it, my gt-grandmother who was born as Annie Laura, became Annie Laura Leila by the time she died and had the extra forename put on both her death certificate and her gravestone.
(Vernon) Mary Ann called her first son John Fortune, which I suppose is a bit unusual, and the Vernon name crops up quite often in the family thereafter, including John Fortune's son, Edward Vernon...
keith
Hi again, Lydart, and thanks for that useful link...(Posts crossed one another)