Elz,
1901 Census ( 4795-171-26)
30 Davis St, Wallsend
Head John Sheehan, 28 hewer
Wife Elizabeth Sheehan 28
Son John Sheehan, 4.
Son Daniel bSheehan 2
(All born Cleator Moor)
So birth of Ellen Sheehan on 22 Nov 1902, ties nicely into the above household !
You a worrier, will still be troubled with the fact that your "target" was recorded as "Eleanor" on the marriage cert, not as "Ellen" on the birth cert and was was one year younger.
Note that the mother on the birth cert is Eliza... the wife on the 1901 census is Elizabeth.
In a couple of weeks you will be able to the family on 1911 census, and hopefully see Eleanor/Ellen within the household of John/Eliza(beth).
These little differences come along frequently when researching our families.
And us modern lot, conditioned with having to know our data, e.g.dob, postcode, NI Number, PINs etc assume our ancestors did the same. Remember folk generally only needed to know their age once every 10 years and maybe once for marriage.
Michael