Being honest we have to put this in context, people we shorter back then, thus it is un-likely that many of us will end up being Line Infantry or Light Infantry. Also, what classes for middle class? I would put lower middle at maybe an earning of £35,000 for a family, but I don't know. Going at that rate, I am just about Lower Middle Class, and it is recorded, that although they may not have been able to afford comissions, often families of the lower middle and middle classes found benifactors to help fund for comissions, so, it is most likely I would have been a Private or Lieutenant, now of which branch is another matter: I am quite Intellectual, I know a lot about military history and I am quite thin about 5' 10", so, I think either a Private, (depending on how far my education would've went), or a Lieutenant depending on whether or not my family was able to find a benifactor for me.