Well I've fished out all the Boston books I can see in the cupboard.

Still no sign of the history of St Thomas' one, but (if I have got it

) I know that I must have put it in an unlikely place.
And I know you don't want to know about the dock RR - but tough, 'cos here's a bit more info.

First sod cut in 1882, first ship docked 15 December 1884.
I've found an Ordnance Survey map dated 1887 which clearly shows the dock railway and the Swing Bridge, so the bridge must have been built about the time of the dock, or at least very soon afterwards.
And never mind the smoke from the trains going to and from the docks, what about the ages you had to wait while the trains chugged v-e-r-y slowly across the road? To say nothing of the jerk you got cycling or riding across the crossing. Still uneven today.

I'll stop teasing now. If you can get hold of 'The book of Boston' by Neil R Wright, originally published in 1986, (reprinted 1991) and then turn to page 57, your wish will be granted.

Don't know if Oldrids would have a copy - they have quite a good local history selection of books. Not sure if I'm allowed to quote ISBNs on the forum, so I'll send you a PM.