Hello Kurt,
No I'm not related. I just get easily sidetracked from my own research.
I've been helping Sue with her "William Corkill and Catharine Kelly Maughold" research, and she has an elusive Robert about 5 years younger, b 1811. I went on a detailed check of all Roberts that I could find 10 years on either side of that date, and the 1805 Robert was in the mix. The match to the London Robert looked very good, for both age and place of birth, and nothing else came up. One caution though is that I didn't look at any overseas records.