Elizabeth, Hezekiah Richards of Colchester

[Neko]

I have two Richards, Elizabeth Richards b. abt 1760 of Colchester, m. Joseph Cross, and Hezekiah Richards b. abt 1768 of Colchester.
Elizabeth named one of her son's Hezekiah Richards Cross, and a brother of his had his children baptised the same day and church as Hezekiah's son Hezekiah Jr's children. I think there's a family link. I think Elizabeth is Hezekiah Jr.'s aunt or cousin. can someone help me with this family?
I find this information on Hezekiah and his descendants;
there is a Hezekiah Richards baptised 29 Oct 1770, St. Mary's, Nottingham, Nottingham, England. father John, mother Mary. is this him? (I know, that isn't Essex, bear with me, please)
Hezekiah Richards m. Ann Harrys 24 Feb 1790 in Lawford, Essex. they had at least one child, Hezekiah, Jr., who was baptised 13 Oct 1791 in Lawford. H. Jr. m. Elizabeth Ledbroke 23 Jul 1808 in Colchester. she was b. abt 1792 in Wivenho, Essex.
who were H. Sr's parents? who were H. Sr.'s siblings?
Elizabeth and Joseph are my 4x great grandparents.
thank you for any help in finding Elizabeth's ancestry-and Hezekiah's as well

[BernieBarnes]

I'd like to help but must say my brain's spinning with all this information.  I have some Colchester parish records, there are many parishes though and I do not have compete sets.  I also have a large range of Wivenhoe excluding latter burials.  If you could break down the couples with full names my brain might clear a bit. 

[Neko]

hi, BernieBarnes,
many thanks for your offer.
I apologise for taking so long to get back to you. I have been distracted with several things and just now am getting back to Rootschat.
ok, my 4x great grandmother is Elizabeth Richards. she was born, I estimate, around 1755. I don't know where, but she married 28 Jun 1778 in Colchester to Joseph Cross. I know she was young when she married, because I have 15 children for her and Joseph.

I hope this is short enough and not confusing. I will leave the others in other posts.

[Neko]

this one is for Hezekiah Richards.
there are at least 3 generations of Hezekiah Richards' in this family;

1st generation
Hezekiah Richards b. unknown m. Ann Harrys
2nd generation
Hezekiah Richards chr. 13 Oct 1791 Lawford, Essex  m. 23 Jul 1808 in Colchester to Elizabeth Ledbroke
3rd generation
Hezekiah Richards 1813-1882 Colchester m. Hannah __?__

so I guess it is Lawford that is needed, and hopefully they did not move as much as my Cross's did.
many thanks for your help