In 1851 of the 60-70 houses in Friar Street some 14 were occupied by Harris's.
  

When John T Harris (14) was born his parents are given as James Harris (28) and Christiana (sic) Harris (29).  This fact was well known from family sources.
The 1871 and 1881 show John T with his parents and siblings. From this it is apparent that James was born in the area of St Nicholas Droitwich.
Although Harris is a common name, Christiana is unusual and therefore it has been possible to identify their marriage with a hight degeree of confidence.
James' father was thus William Harris a bricklayer.
With a reasonable degree of confidence the baptism of James has been identified and this gives his parents as William and Mary.
Therefore the identity of James Harris has been established with a reasonable degree of confidence.

The James Harris who is the son of William and Mary Harris is not with them in the 1841 Census.
William and Mary are in Friar Street with their daughters Elizabeth and Mary.
Their son, William, aged 10, appears to be called William Turnutt.

There is a James Harris, aged 15 living with Thomas and Martha Morris at Broom Hill, Belbroughton, Bromsgrove.
There is another James Harris aged 14 living with Sarah Newman and family at Sinton, Leigh (WSW of Worcester).
All the other James’ in Worcester are living with their parents.

If these are the correct family for James Harris then it is strange that he is not with the family in the 1841 Census when he was aged 14.
	

Despite the common name James Harris there were only three James Harisses baptised in worcestershire in 1825-1827 with a father called William.
One of these was at St Augustine Dodderhill (ancient parish of Droitwich).
The baptism register gives their residence as St Nicholas Droitwich, tying in with the 1871 Census and William as a labourer.
Therefore with a fairly high degree of confidence it appears that this is the correct baptism.

Baptisms of James Harris - from Family Search - Worcester, 1824-1830, father William.
12 Aug 1827	Dodderhill, Worcester				William Harris, Mary Harris
25 Dec 1826	Bromsgrove, Worcester				William Harris, Catharine Harris
22 May 1825	Norton Juxta Kempsey, Worcester			William Harris, Sarah
(Also : Charles James Harrison	25 Apr 1824	Worcester, England	William Harrison, Mary)

William and Catherine Harris - Bromsgrove
They had a son James.  Baptism 25 Dec 1826 but this date is suspect as it is also the date for John and William.
This family had other children.
There is a marriage for William Harris and Catherine Day
23 Apr 1816	Bromsgrove, Worcester
There are other marriages around this time in Halesowen (1825) and Worcester (1813)

There is a Catherine Harris in the 1841 Census with sons John (age 14) and Thomas (age 8) in Bromsgove.
Catherine, a widow, is in the 1851 Census with son Thomas (age 18), both have occupation given as Nailor and both born in Bromsgrove.
There doesn’t appear to be a baptism entry for Thomas.

This family does look unlikely to be the right one because they are firmly rooted in Bromsgrove.