$545,820.43 Lynch payment

Lynch Properties was supposed to pay our Mother's Estate $545,820.43 on April 21, 1992, for the full payoff of Note 1. But only $26,917.17 is recorded. The difference of $518,903.26 dissappears.

What happened between Lynch Properties and the Estate? What was/is the relationship between Bill Lynch [E. W. Lynch, Jr.] of Lynch Properties and Edward White?

"THIS DEED OF TRUST made this 21st day of April, 1988, by and between E. W. LYNCH and WAYNE M. LYNCH, Trustees for LYNCH PROPERTIES LIMITED PARTNERSHIP, a  Virginia limited Partnership, acting under a certain trust agreement recorded among the land records of Fairfax County in Deed Book 5605 at page 1400; hereinafter referred to as "Borrower"; and EDWARD  J. WHITE of Alexandria  and RICHARD G. WOLTMAN  of  Fairfax County, either of whom may act, hereinafter referred to as "Trustees""; and the Beneficiaries, Jean Miner O'Connell; and Anthony M. O'Connell and Herbert A. Higham, Trustees under the trust established by the Will of Harold M. O'Connell; hereinafter collectively referred to as "Noteholder", provides:"