Alf Evers, who died last Wednesday at age 99, was the town historian of Woostock, N.Y., and the author of several exhaustive works of local history,including "The Catskills: From Wilderness to Woodstock." A charismatic figure, Alf often spoke before local groups regarding the need to limit development in the Catskills, Evers seems to have been preserved into a lucid old age by his dedication to his work. In the days before his death, he put the finishing touches on his final book, "Kingstonon-Hudson: An American Historical City," another massive production, which he wrote with the secretarial assistance of Ed Sanders, a poet and friend. It is scheduled to be
published this spring. "He was singing when he passed," Mr. Sanders said. "Bemusement, that's how he lived so long. The divine comedy passed over his eyes."