If I have misread your post Heather, I apologise, but I don't believe 391 was a station, Your William appears to have been living there perhaps as a lodger, his wife was Housekeeper to the Surgeon who lived there. 391 is also a long way from the Coventry Road Station that was being discussed and the Coventry Road is a very long road which I can vouch for because I live on it.
Is it a photo of 391 that you would like ?
View attachment 78859 I think 391 would have been in the block of smaller buildings on the right of the picture, but I don't know if the buildings replaced other buildings similar to the larger ones further down the block.
If you google the address on Google maps, 393 is a Solicitors. Hope this helps.