As per the Children's Homes site, St Thomas' Lodge (12 Charminster Rd) was a Mother and Baby Home.
http://www.childrenshomes.org.uk/list/Dorset.shtmlhttp://www.childrenshomes.org.uk/MB/Here is a newspaper report from 1903 which may be of interest.
Note: Miss Jackson of St Thomas' Lodge gets mentioned quite a bit in Bournemouth newspapers at the time. It appears she made visits to the local workhouse. Looks like she also interfaced with female defendants/prisoners, and tried to get them to enter the home.
Bournemouth Daily Echo24 January 1903 (page 3)
"GIRL SENT TO A HOME - Alberta Graham, domestic servant, of Bournemouth. aged 15 years, who had been remanded on charge of attempting commit suicide by by drowning off Bournemouth beach, was brought up the Police court this morning, before the Mayor (Alderman Beale). Superintendent Faster said he did not wish to offer any evidence, but asked the Mayor to hand the girl over to either Miss Jackson,
of
St. Thomas's Lodge, or to the lady guardian from the parish in which the girl formerly resided. In answer to the Mayor, the girl said she was quite willing to go with Miss Jackson. The Mayor, discharging the prisoner, reminded her that she was charged with a very wicked offence. She ought to feel thankful to Superintendent Foster and ..."