Thanks for your reply.
You have to browse through the records as it doesn't take the names, but entering the details of the place and year gave no results when I tried to select from the workhouse births for St. Pancras. It seems the records are not there in the first place to look through.
I'm wondering if it could perhaps be the infirmary which you suggest. There was another elder daughter from this same mother, Mary, who was born at the Queen Charlotte's Hospital for unwed mothers, so it might be that it could be the infirmary and not the workhouse that Laurie May was born at. It just says that 115 St. Pancras Road was the mother's address. It is very complicated, but Laurie May was in fact illegitimate, though the mother Mary 'Burgess' stated on the birth cert. and baptism record that she was married to a John Burgess, a 'butler'. All the information on these documents is in fact false, except for the date of birth and the name Laurie May.

I suppose the information was given so hide the fact that the birth was associated with the workhouse.
In fact, the mother's name is Mary Margaret Chapman, my maternal Great Grandmother and the father of Laurie May appeared to be (in latter records I have) a butcher, John Amey from the Marylebone area. The other daughter, Clarice Margaret Chapman was born 1880 at the Queen Charlotte Hospital in Marylebone. My Grt. Grandmother Mary Margaret Chapman never married until 1889 in Wimbledon (to Frederic William Brooke). The two illegitimate girls took on the surnames of Chapman, Brooke and in later documents used the surname of Amey.
It has been so twisty-turny researching with all the name changes and falsehoods, but I've been trying to piece together the 'story' behind it all. In 1881 Mary Chapman is living with her mother Jane Chapman in Leatherhead, Surrey with newborn Clarice and Clarice is noted as being Jane's child, though Jane was in her fifties. It would appear that Mary would have been pregnant at the time with Laurie May.
Jilly