I am not related, but from the information givenin the first message, it says circa 1945. There is only one birth of a Barbara Stitchman in Kent which fits, so, depending upon the rough age of this child when the photograph was taken, you should be able to work out the date of the photo.

First name(s) BARBARA A
Last name STITCHMAN
Birth year 1945
Birth quarter 3
Registration month -
Mother's last name WISDOM
District MAIDSTONE
County Kent
Country England
Volume 2A
Page 1914
Record set England & Wales births 1837-2006
Category Birth, Marriage, Death & Parish Records
Subcategory Births & baptisms
Collections from Great Britain