Ancestry assistance - Thank you

I'm looking into my ancestry - James Bull Parents Birth and Death records and have only found date when they died. James Bull Died 17.12.1820 aged 58 and Elizabeth maiden name TBC Died 7.9.1837 aged 73.
Son James Bull was Baptised on 16th May 1790 at St Marys Church, Walthamstow, Essex.
Are you able to help fill in the blanks? Mothers Full Name before marriage and date of birth for both James Bull Father and Mother. I have checked on Ancestry and I was unsuccessful.

I looked on Family Search the Mormon site [free]. I can't find a marriage for James Bull and Elizabeth,But going by your dates , James Bull who died 1820 wouls have been orn 1762 ish. I did find a baptism for a james bull 1/3/1761 at Leyton in Essex. Father Walter and mother Margaret.

kathpressey - thank you for taking the time to help. I will look into it further and see what I can find.

There's a good group on Facebook called Genealogy Addicts UK. Loads of people who enjoy helping others who are stuck on finding people

Record set Essex Baptism Index 1538-1917
First name(s) Jas
Last name Bull
Baptism year 1762
County Essex
Country England
Place -
Mother's first name(s) Mary
Father's first name(s) John
Sex Male
Baptism date 07 Feb 1762
Baptism place Essex, England
Father's last name Bull
Mother's last name Bull
Category Birth, Marriage, Death & Parish Records
Subcategory Parish Baptisms
Collections from England, Great Britain

mygriffiths, thank you for your time spent on my ancestor enquiry. I am delighted to hear from you. If you don't mind me asking, whereabouts or which website did you source above information?

I used find my past for your answers.