Getting Contact
After a bit of time trying to contact all of these establishments, one of them, like I said, managed to get through and it was The London Transport museum, mentioning that all the information is for private and educational use only, which is the purpose of this project, however, the information that was gathered is considered to be a set-up for a framework.
The other museums I wasn’t able to get in contact with as either they didn’t get in contact with me via email, or I was unable to contact them in general due to schedule conflicts where they were open and I was unavailable.