I wrote that letter for [his wife] Ann to send it to my correspondents when I died. They settled in Canaan, New York, on land that was part of a Sufi commune in which they had lived for a while. His novel Long Voyage Back (1983) combined the story of his familys near-death sailing adventure in the Mediterranean, just before meeting Franklin, with a post-nuclear apocalypse. In 2017, he showed the Guardian an extract from his diary at the time. Im pretty sure, the Guardian waited for official confirmation from his publisher Titan.
Ann wrote that letter for an interior decorators.
( z0 write :ARG0 ( z1 person :name ( z2 name :op "Ann" ) ) :ARG1 ( z3 letter :mod ( z4 that ) ) :beneficiary ( z5 person :ARG0-of ( z6 decorate :ARG2 ( z7 interior ) ) ) )
(z0 / write-01
    :ARG0 (z1 / person
              :name (z2 / name
                        :op1 "Ann"))
    :ARG1 (z3 / letter
              :mod (z4 / that))
    :beneficiary (z5 / person
                     :ARG0-of (z6 / decorate-01
                                  :ARG2 (z7 / interior))))
Ann wrote that letter for an interior decorators .
z1 :name z2
z2 :op1 0
z0 :ARG0 z1
z3 :mod z4
z0 :ARG1 z3
z0 :beneficiary z5
z5 :ARG0-of z6
z6 :ARG2 z7