Earth In World Without Stars

The concluding chapter of Poul Anderson's World Without Stars (New York, 1966) is described as an addition to the posthumous edition of Guild Captain Felipe Argens' autobiography so, despite the antithanatic, the Captain has died after we do not know how many centuries of life.

He describes Earth/Manhome:

it is depopulated and quiet;
great forests have returned;
spacemen find enjoyment in the starport towns;
youth from every part of the galaxy attend the educational centres;
arts, science and scholarship flourish;
nothing new is built - the old is preserved;
a spaceman can find his robotically protected property and its surroundings unchanged after five hundred years;
Argens reports to his employers and to the Universarium of Nordamerik;
in Niyork, there is little traffic while ivy and lichen grow on the tall, mostly empty, towers;
to visit Hugh Valland, Argens rents a flying vehicle called a "flitter" and parks it "...on an otherwise deserted carfield..." at a small Maine village (p. 123);
in Maine, there are forests and a peak-roofed, shingle-walled, seaside village of two hundred people, "...those curious, clannish folk who - even more than on places like Landomar - are not interested in worlds out yonder, who use their immortality to sink deeper roots into Earth" (p. 123);
the civil monitor of the village smokes a pipe on a rocking chair on his porch while his one wife prepares dinner;
Argens finds a gravestone inscribed "Mary O'Meara, 2018-2037";
Mary's contemporary, Valland, is nearly three thousand so the novel is set about 5018.

(Mary will be born five years hence in the year of James Blish's They Shall Have Stars/Year 2018!)