Just had a look at the Telephone Directory refs that you mentioned. I can only see one entry with an Annie Teresa Houchin. Looks to be more a business entry rather than a personal entry (which could explain why it is there):
1922: Annie Teresa Houchin, New Registry Off., 150 Queens Road, W2
Queens Road, W2, is the old name for what is now called Queensway in the Bayswater area of todays' London.
Can't find any reference to it on line and intrigued by the 'New Registry Off.' bit!
There is then multiple entries for a Mrs Annie Houchin from 1928-58 in the area of Paddington, which borders Bayswater, at a number of addresses.