Error in Winstanley's Loyal Martyrology

Winstanley, in *The Loyall Martyrology* (London, printed by Thomas Mabb, 1665), p. 67., says of Master Gerard, the author of that elaborate herbal which bears his name—"This gallant gentleman, renowned for arts and arms, was likewise at the storming of that (Basing) House unfortunately slain." According to Johnson, who edited his Herbal in 1633, Gerard was born at Namptwich, in Cheshire, in the year 1545; and died about 1607. Basing House was stormed Oct. 1645: had Gerard served there, he would have been 100 years old. It appears that Winstanley has confounded Gerard with his editor Thomas Joh…