Annelise Manojlovic has become the longest serving child actor in Emmerdale, and the 2nd longest in British TV Soap Opera due to her 14 year stint as Gabby Thomas (after Warren Jackson who played Nick Tilsley in Coronation Street).
In 1972 there was an adult character called Gabby Thomas, played by Heather Franks - no relationship to the 2001 onwards, character. (See http://www.imdb.com/name/nm1122327 http://www.famousbio.com/Heather-Franks )
Father Ashley Thomas
Mother Bernice Blackstock
Siblings Arthur Thomas
Great aunts Val Pollard