"I'm not sure if I can find out more than you as I'm a novice."
I'm just trying to give some examples of how you might do things yourself when you're researching your own family tree, especially if you get stuck when searching for somebody. I always found it easier if I had examples to copy.
"I believe that the demolished houses in front of the church were cottages. I may have a picture of them."
It would be really interesting to see that if it's not too much trouble for you.
"I've got no idea why Bradwell is called the East End as it's Essex,"
There's a tiny village just east of Bradwell called "East End" going out on East End Road - have a look on google maps. Back then there seems to have been about six houses (either that or five houses and a pub).
After that there was East Hall and Eastlands (large properties both now demolished) and East Hall Farm which is, today, a Grade II listed property (photo below).
I think it likely that it was East Hall Farm where the Richardson sisters were visiting in 1851.
.
Just thinking about the wider context of their lives, they were born a few years before Pride and Prejudice by Jane Austen was published in 1813 (although she did write it in 1797) and you might think of them as the generation following the Bennet sisters.
The Richardson sisters are clearly not quite up to the level of the Bennet sisters in terms of family wealth but they are a lot closer to them than they are to a family of butchers or bakers.
In Pride and Prejudice, a minor character by the name of Mary King inherited £10,000 and it was more than enough to persuade Mr Wickham to propose marriage. We don't know how much the Richardson sisters inherited but they still had almost £4,000 left in 1891 after at least 50 years of living off their inheritance.