Seagrave Lineage Sources:
Burke's Dormant and Extinct Peerage, pp. 484, 266, 53, 598/9.
Banks' Dormant and Extinct Baronage, Vol. 2, p. 498.
Browning's Magna Charta Barons and Their Descendants, p. 88.
Edward S. Lewis Manuscripts, pp. 81, 286.
Foster's Pedigrees Co. Fam. of Yorkshire, Vol. 1, Part 2.
Burke's Landed Gentry (1939), Vol. 3, pp. 2759-2760.
Arms for Segrave:
Sable, three garbs argent, tied gules. (These were the ancient arms of Segrave, but they afterwards bore:) Sable, a lion rampant, argent, crowned or.