Chart of Suisun & Vallejo Bays, with the confluence of the rivers Sacramento and San Joaquin : California / by Cadwalader Ringgold, Commander, U.S. Navy ; assisted by Sam. R. Knox, Lieut., U.S.N. and Wm. P. Humphreys & J.H. Rowe, engineers, 1850.Ringgold, Cadwalader, 1802-1867[1851?]"Constructed, projected and drawn by Fred D. Stuart, hydrographer, late of the U.S. Ex. Ex. ; assisted by John Tyssowski, draughtsman."Entered according to act of Congress in the year 1851 by Cadwalader Ringgold ....""Sheet no. 3."Inset views: View of Benicia from the anchorage east of Seal Island -- Mark for Tongue Shoal -- Entrance to the Sacramento River.cartographic