where an annuity would accrue for such month under
section 231a(a)(1) of this title to an individual who had a current connection with the railroad industry at the time of such individual’s disappearance, and under
section 231a(c) of this title to such individual’s spouse, had such individual been shown to be alive during such month, such individual shall be deemed, for the purposes of benefits under
section 231a(d) of this title, to have died in the month in which such individual disappeared, and where an annuity would accrue for such month under
section 231a(a)(1) of this title to an individual who did not have a current connection with the railroad industry at the time of such individual’s disappearance, and under
section 231a(c) of this title to such individual’s spouse, had such individual been shown to be alive during such month, such individual shall be deemed, for purposes of benefits payable under
section 231a(c) of this title, to be alive during such month unless the death of such individual has been established or the annuity of the spouse of such individual is otherwise terminated under subsection (c)(3) of this section, and