Where it says: An unsourced profile created for Robert Reeves with an earlier birth year of 1575 but the same death data
Obviously should be 1475. I don't think it's necessary to include it or give credit as there was no source, but OK to leave it if you think it helps.
As far as the alternate spelling, I don't normally try to record every spelling difference found in documents, but if you think this one is significant, like it could help locate his father's line, then it's OK. I find it a little awkward the way WikiTree displays names like this, but that isn't under our control.