Father: John Atkinson Mother: Eliz./Elizth/Elizabeth Unknown
Siblings: Mary Atkinson, 29 Oct.1806, Whitehaven, Cumberland, England, Baptized: 16 Nov. 1806, St. James, Whitehaven, Cumberland, England Thomas Atkinson, 12 Dec. 1808, Whitehaven, Cumberland, England, Baptized: 16 Nov. 1806, St. James, Whitehaven, Cumberland, England Sarah Atkinson, Baptized: 1 Aug. 1813, St. Andrew's Church, Penrith, Cumberland, England James Atkinson, Baptized: 1 Jan. 1815, St. Andrew's Church, Penrith, Cumberland, England Jane Atkinson, Baptized: 5 Feb. 1815, St. Andrew's Church, Penrith, Cumberland, England Catherine Atkinson, Baptized: 15 Sep. 1816, St. Andrew's Church, Penrith, Cumberland, England Matthew Atkinson, Baptized: 12 Jan. 1817, St. Andrew's Church, Penrith, Cumberland, England William Atkinson, Baptized: 2 May. 1819, St. Andrew's Church, Penrith, Cumberland, England
I went to Ancestry.com and entered "John Atkinson, Whitehaven" and "John Atkinson, Penrith" then sifted through humdreds of hits in order to compile this list of possible siblings.
John (see next page), Mary, and Thomas are said to be children of John and Eliz. All the others are said to be the children of John and Elizth. I cannot provide individual sources for each child.
This provides too little information on which to do further research.