Has anyone received a payment by "manual transaction"? Social Security
It is not likely that a payment by manual transaction will have been made. In most cases social security payments are made by direct deposit to your bank account by the U.S. Treasury or by having a check mailed to you according to http://ssa-custhelp.ssa.gov/app/answers/detail/a_id/431/~/benefits-received-after-the-date-of-death.
As far as I know ss checks must be direct deposit. No "live" checks.