There is something wrong with these records or is just me approaching senility?
In this case, RR, I'm sorry to say but it's you. 
Well, some bits, as you have the month correct, and given the usual weather we can get in January you no doubt remembered that bit correctly as well. 
FreeBMD only has one Buff death registration in Boston registration district between 1961 and 1970. John T Buff, aged 75.
FreeREG has the burial date as 19 January 1965. And the PR also has noted 'plot number 535 (ex verger).
Sorry, I meant to add March quarter 1965, which would tie in with the burial date on FreeREG.
Also forgot to say, that if you no longer go to Boston, because you have a date of burial (and back in those days burials usually took place within about ten days of death, often quicker) if you ask nicely via an email to Boston library they will probably send you copies of John/Jack's obituary/funeral report taken from the original newspapers, rather than any filmed ones. I can't remember when the filmed newspapers end; possibly about the end of the 1950s which is the current limit on the BNA website.
Depending on the day of the week a person died and was buried, you could have an obituary one week and a funeral report the next; or a combined report in one week.
