IGI has these baptisms with parents William BELL and Ann
Some entries have been submitted by members of the LDS church and thus may not be reliable .
Extract entries are from local church or other records. Some of this family have both types of record.
Benjamin Providence BELL - submitted entry
Birth: 19 MAR 1820 Wainfleet, , Lincoln, England
Death: 26 AUG 1893 Cootamundra, New South Wales, Australia
Father: William BELL Family
Mother: Ann PARKER
Azuba Maria BELL - another submitted entry
Birth: 21 OCT 1821 Wainfleet St Mary'S, , Lincoln, England
Death: 1903 Cootamundra, New South Wales, Australia
Parents:
Father: William BELL Family
Mother: Ann PARKER
There is also an extracted entry which gives her baptism date as 21 OCT 1822 at Wainfleet Saint Mary, Lincoln,
Isaiah BELL (submitted entry)
Birth: JUL 1827 Wainfleet St Mary'S, , Lincoln, England
Death: 27 JAN 1860 Clarendon Near, Richmond, New South Wales, Australia
Burial: 29 JAN 1860 Richmond, New South Wales, Australia
Father: William BELL Family
Mother: Ann PARKER
There is an extract entry which gives his baptism as 12 FEB 1827 Wainfleet Saint Mary, Lincoln, England
Elizabeth OR Eliza BELL (submitted entry)
Birth: 05 JUL 1829 Wainfleet,St Mary, , Lincoln, England
Father: William BELL Family
Mother: Ann PARKER
MARIA BELL -
baptism 2 JUL 1818 Wainfleet Saint Mary, Lincoln, England - extract entry
MOSES BELL -
baptism 28 APR 1834 Wainfleet Saint Mary, Lincoln, England - extract entry.
Joseph BELL,
baptism 18 MAY 1828, Wainfleet-St Mary, Lincoln, England - extract entry
This list does not correspond exactly with your list - perhaps some of them were baptised with one name but used another? Some of them may have come separately - Azuba and Benjamin for example.
Judith