1.  Marriage Record:

2.  1790 Census Index/Images (online at Ancestry.com, Image #6 of 7 — list was roughly alphabetized; extracted by Diana Gale Matthiesen):

1790

NC

Surry Co.

Roll M637_7

p. 520

Ln. 21L

Amos London

2-1-2-0-0

These data indicate:

Gender and Type	Age Class	Therefore Born	Individuals Inferred
2 free white males	16 or over	in or bef. 1774	= Amos Sr = Amos Jr?
1 free white males	15 or under	1774-1790	= ?
2 free white females	all ages	in or bef. 1790	= Sarah = ?

The junior Amos didn't marry until 1793, so this should be the record of our subject.  It's hard to say who else is in the household.  On same page w/son-in-law, Johnson SUMMERS, husband of daughter, Sarah LONDON.

3.  1800 Census Index/Images (online at Ancestry.com):  I can only find the junior Amos LONDON enumerated in Surrry Co., NC.  Jesse LESTER is in Salisbury, Surry Co., NC (p. 544 — mis-indexed as Jesse LETTER), and it appears Amos may be living with them. 

4.  WorldConnect / Ancestry World Trees (online at RootsWeb.com/Ancestry.com).  A file there submitted by Sharyn Williams includes numerous pieces of valuable documentation, including our subject's will and a letter written by him on the same day he signed his will.

The following is Amos's Will and Codil as Recorded State of North Carolina, Surry County In the name of God Amen I Amos London Sr. of the County afore said being weak in body but of sound sence and memory and knowing that it is appointed for all men once to die do make and ordain this my last Will and Testament. 1st I give and recommend my soul unto the hands of Almighty God that gave it. 2nd my body to be buried in a decent Christian manner and as touching such wordly estate with which it has pleased God to Bless me with give demise and dispose of the same in the following manner and form Vis; I give to my daughter Sally Summers all my moveable estate of every kind whatever to her and heirs forever.  I give and bequeath unto Thomas W. Lester a tract of 200 acres of land joining my old line and John Summers Sr. to him and his heirs forever; provided when he comes of age he gives his sisters Polly and Sally $2.00 each. Hereby revoking all former wills and acknowledgeing this to be my last Will; In Witness whereof. I have hereunto set my hand and seal this 24th day of May A.D. 1805 Signed sealed published and pronounced in the presents of Jesse Lester, M Armstrong Amos London seal

May 24th, 1805 To my friends and acquaintances of Surry County; I am in the 69th year of my age and the forepart of my life was agreeable and pleasant and so on did I live in my family with utmost content and satisfraction until about 20 years ago my old woman began to incurr my displeasure and she together with her friends and her children to wit, my 2 sons and some of the Bills has in hundreds of ways too dedious and too delicate and fretted me to distraction I am left without a consort, I am reduced to almost poverty and in particluar abused and beaten by Amos Jr., spit upon, frowned upon, by him and his family and treated in the most ungrateful manner, almost unheard of by a son to his father, so much repeated ill usage that my poor old grey hairs are almost brought down with sorrow to the grave.  I know my friends, I am and always was as all men are to human frailties and error from the impulse of passion which has been in a great measure occasioned by the ill treatment of my 2 sons and their mother continially joined together to distrub my peace and happiness at home and as my intentions were always for to support my children by my industry and labour in a decent manner and receiving nothing in turn but abuse redicule it would irritate any man of Spirit, this as I before mentioned being the desries of my heart which the great and good will knows to contribute to my familys welfare and not being received with kindness and tenderness as a father has a right to expect from his sons has made such deep impressions on my heart as to crave death rather than to live in a world where I no more expect any content, I therefore bid farewell to my acquaintances and particluar to my children and their mother with a request that Amos deliver to his sister Sally Summers all my moveable effects, I shall indeavour to travel to some distant part where I hope receive happiness in and through a blessed redeemer Jesus Christ. Amos London Test; Jesse Lester, M. Armstrong

The implication from the letter is that his wife is living, while the implication from the will is that she is deceased because the law does not allow a man to disown his wife simply because he hates her, deservedly or not.  So, was the will contested?

5.  LDS.  Family Search: Internet Genealogy Service:  IGI - International Genealogical Index (online at FamilySearch.org).

6.  LDS.  Family Search: Internet Genealogy Service:  AF - Ancestral File (online at FamilySearch.org).

7.  LDS.  Family Search: Internet Genealogy Service: Pedigree Resource File (index to CDs, online at FamilySearch.org).