Before he experienced scandal, Garrison Keillor did a daily piece called “The Writer’s Almanac” on my local NPR station, where he would talk about literature and then conclude with a poem. There was one that was fairly lengthy, from the viewpoint of a woman who married in the late 1960s or early 1970s and talks as she turns pages in a photo album, as they happily celebrate birthdays, have children, etc. and around 1975, the poem concludes with a line that is something like “this was around the time that the skies began to darken.”
I have investigated TWA’s website and poem search engines without success. Dopers?