Hello Rae,
Talking of getting names mixed up, one of my g grandfather's brothers was registered as Duncan Withrow born 22 April 1860 in the Parish of Kildalton. His parents were Duncan Withrow and Elizabeth Campbell. Neil Woodrow and Helen Crawford had 1 child (Helen born 30 June 1858) named Wodrow and the rest were named Woodrow.
My gg granfather's sister had a son named John Woodrew.
So as you pointed out there didn't seem to be any consistency in the way the name was spelt.
Regards
Iain