I have been researching the Hesom line & found a few facts that may be of interest. My line is from Joseph Hesom born 1780 Willoughby, Warwick, England it looks as though he had a brother James. they both appear in the 1820's voters lists & the 1824 land records. In Willoughby church records it lists the following :-
Baptism George Hesom 22 DEC 1811   Willoughby, Warwick, England parents are James Hesom & Mary
 Marriage George Hesom to Elizabeth Wade  28 SEP 1841   Saint Andrew, Rugby, Warwick, England 
Baptism record for 3 children of George & Elizabeth are Robert Hesom 07 DEC 1845   Willoughby, Warwick, England  
Elizabeth Anne Hesom  01 MAR 1842   Willoughby, Warwick, England 
 Mary Hesom  01 MAR 1842   Willoughby, Warwick, England .
In the 1841 census George is listed as a builder. There is a death record in   Jun 1849 .
Then a marriage record Name: Elizabeth Hesom 
Year of Registration: 1850 
Quarter of Registration: Apr-May-Jun 
DISTRICT: East London 
County: London, Middlesex 
 
Name: Owen Owens 
Year of Registration: 1850 
Quarter of Registration: Apr-May-Jun 
DISTRICT: East London 
County: London, Middlesex 
I have since found this info.
Name: George Thomas HESOM 
Given Name: George Thomas 
Surname: Hesom 
Sex: M 
Birth: 5 Sep 1843 in Rugby,England 
Death: 1920 in Pietermaritzburg,South Africa 
Occupation: Councillor 1902 Pietermaritzburg,South Africa 
BIOGRAPHY: - Hesom Street in Pietermaritzburg was named after him as he owned most of the property in that area.
- Both his parents being deceased, he came to Natal with the Byrne Settlers (in the Nile under Lidgett's scheme) with his Stepfather, Mr Owen and his aunt, Mrs Wade.
- At age 13 (mid 1850's) he traded in Zululand with his stepfather and Mr Vicar Brayhurst.
Father: George HESOM 
Mother: Elizabeth WADE