Joanna Shepherd was baptized 7 June 1752 at Kimpton, Hampshire the daughter of William and Joanna Shepherd. A William Shepherd was buried 12 Jan 1786 at Kimpton aged 78 years (birth year circa 1708). Is this the father of Joanna? He would have been 48 years of age when she was baptized. I haven't found a marriage for William Shepherd to Joanna.
Joanna Shepherd married John Alderman 13 Jan 1772 at Kimpton. Their daughter Hannah married Charles Coterill 23 Oct 1824 at Kimpton. Their son William Cotterill married Jane Sherwood 21 Feb 1852 at Kimpton.
I did find one interesting baptism for a William Shepherd son of William Shepherd 27 Mar 1735 at Collingbourne Kingston. However he would likely be too young to be the father of Joanna.
Joanna's date of death/burial is unknown to me but she does not appear on the 1841 census at Kimpton.
Ancestry of Joanna Shepherd:
1. William COTTERILL (b 12 Jun 1825) - Kimpton Hampshire England
2. Hannah ALDERMAN (b 2 Aug 1789) - Kimpton Hampshire England
3. Joanna SHEPHERD (b 7 Jun 1752) - Kimpton Hampshire England
4. William SHEPHERD