Sorry I cant help with the License.
Just some entries from St Faith, Newton Longville;
Marriages;
31 Jan 1816, Sarah BIGG (s) to Jos CHILTON
1817 one you have of Harriett/Jno is there also.
Joseph/Sarah Chilton Bapt 2 Children, ROBT HENRY 1816/SARAH 1819, Father a Farmer.
Unfortunately on Joseph/Sarah Jnr are in NL in 1841 Census so I cant find a pob/dob for Sarah nee Bigg(s)
Burials;
JNO Bigg(s), 12 July 1809 (birth c 1794)
ROBT Bigg(s), 9 Feb 1813 age 68 (birth c 1745/6)
All on FreeREG, they may be useful in the future.
It is possible Sarah/Jno (Jno) are Siblings of Harriett.