for example,
My father, to die of lung cancer in 1992, was a good husband to my mother.
My father to die of lung caner in 1992 was a good husband to my mother.
(The situation is that I'm pointing to my father's picture talking with my friend)
Is it better to set off "to die of lung cancer in 1992" with two commas as there was only one father to me?
and, could you bring or make some sentences about this topic as well?
( for those who are weak in English grammar terms to know what's the non-restrictive, if a sentence or phrase is set off by two commas modifying its preceding noun, it's called "non-restrictive sentence or phrase", and "restrictive' doesn't require any commas.)
Could anyone please cite a reliable source in which "to infinitive phrase can be set off by commas to be used non-restrictively" is written?