Andrew Tarr - I don't believe I'm a product of my parents or previous generations, but they are of interest to me for what they could achieve given their own lots in life. My grandparents and parents were great recipients of advancements in social mobility, whereas for their own ancestors - and myself, and my own children - things are more different.
Also, Andrew, like you, my ancestors had never "risen further" than that of Yeoman. But my more recent developments were a very happy accident. Unusual surname, well indexed parish records, etc...
Sloe Gin - I have found, like you, that many of my Steward relatives all try and trace the most potentially illustrious lines, despite those having the ropiest provenances! They sound similar to those claiming descent of your Admiral Benbow

jim1 - I'm never normally one to avoid rising to the bait, but other than the fact that only a handful of people have addressed my initial request ("Please try and discredit my evidence!") I've not noticed anything too bad in this thread. Mostly a case of people misreading or misunderstanding me. Hopefully not deliberately...
Skoosh - as I'e reiterated a few times now, my quest wasn't particularly to find "royal blood", but simply to take my tree back as far as I could. I always knew I would have to find illustrious ancestry in order to do that. And, to be honest, anyone you're able to trace back to the 1200s or so is usually going to be a bastard child of a royal somewhere or other! My own research suggests that Oliver Cromwell himself was of royal descent, of course.