Here are some earlier cases involving Elryngtons. There are three: Simon, John, and Robert. Simon is identified only as "of Middlesex" in these, but he is probably of Hackney, as in 1458. John is identified only as esquire, but could be the same as in in 1458, of Newcastle. And Robert is of Elryngton, Northumberland, esquire.
Simon Elryngton, of Middx, esquire or gentleman
London. Anne or Aune, Alexander, executor of; (Elryngton, Simon) versus Estfeld, William, of London, knight & former mayor. Debt.
Northumb. Elryngton, Simon, esq; Proctour, Thomas, clerk, versus Wales, John, of Newcastle on Tyne, merchant; Anbell or Aubell, John, of Newcastle on Tyne, merchant. Debt.
Middx. Elryngton, Simon versus Drayton, John, of Tottenham, gent. Debt.
Northumb. Elryngton, Simon, of Middx, gent; Prottour or Proctour, Thomas, chaplain, versus Stevenson, Hugh, of Alwentdale, yeoman; Cottysford, Alwentdale, yeoman; Stevenson, John, of Alwentdale, yeoman; Barker, Roger, of Hexham, tanner. Debt.
Middx. Elryngton, Simon, gent versus Smallage, John, of Hakeney, husbandman; Wetwange, Robert, of Dunstan, Northumb, gent; Heron, John, of Forde, Notts, knight; Botell, John, of Greys Inn, Holburn St Andrew, gent; Warde, Thomas, clerk, executor of; (Durant, William, of London, notary). Debt.
John Elryngton, esquire
Middx. Elryngton, John, esq, on his own account, versus Hepehill, Richard, of Etton, Yorks, clerk; Briggefeld, Richard, of North Cave, Yorks, gent; Alverd, William, of Hakeney, Middx, husbandman; Girlyngton, Edmund, of Hakeney, husbandman. Debt.
Robert Elryngton, of Elryngton, Northumb, esquire
Northumb. Langley, Thomas, Bishop of Durham, executors of; (Alnwick, William, Bishop of Lincoln; Neville, Richard, Earl of Salisbury; Hulme, Nicholas, canon of Derlyngton; Strother, Robert, esq; Corston, Richard, chaplain) versus Wodryngton, Roger, of Wordryngton, esq; Elryngton, Robert, of Elryngton, esq; Bartram, John, of Bottale, knight. Debt.