Yes, I'd take Obadiah or even 'Omodon' at this stage but likely to be John.............
I found a few Elizabeth Jeeves around that time, also Eliza Jeeves 1838 Sandy whose parents were Allen/Harriet Jeeves. Could be a red herring.
I have found nothing to link these nor anything on the 'Hugh Wallis' listings re marriage of Allen/Harriet so, unless I unearth something else, it looks like another couple of weeks for the marriage cert of John/Elizabeth.
I am somewhat curious as the Allen Jeeves b1808, father of Eliza, is still around with his widowed daughter in the 1881 census. He has 145 Acres, a servant, 9 men and 2 boys working for him. I cannot believe that he would be living like this whilst his 'daughter' and 'grandchildren' are living it up in the workhouse.......But, you never know!!
Regards,
Mark.