John Seller

[1] Seller's subsequent career was affected by being put on trial in 1662, accused of high treason: it is thought he repeated a rumour about a plot involving a cache of arms.

In this way his name and occupation became known: the episode may have been a factor in his eventual appointment in March 1671 as hydrographer to the King.

[1] In that year he published the first volume of charts and sailing directions, entitled The English Pilot.

[1] Seller wrote textbooks including Practical Navigation (1669), A Pocket Book containing several choice Collections in Arithmetic, Geometry, Surveying, Dialling, &c. (1677); and The Sea-Gunner, shewing the Practical Part of Gunnery as it is used at Sea (1691).

He and his wife Elizabeth had three daughters and two sons; John Seller, junior, had a shop in Cheapside, where his father's publications were on sale.