"Mississippi River." . . "River Improvement Convention (1877 : St. Paul, Minn.)" . . . "Daly, John J. & Co.," . . . . . . "A memorial to Congress to secure an adequate appropriation for a prompt and thorough improvement of the Mississippi River"@en . "A memorial to Congress to secure an adequate appropriation for a prompt and thorough improvement of the Mississippi River" . . "Give us an unobstructed Mississippi" . . . . . . . . . . . . . . "Mississippi River improvement convention (1877 : Saint Paul, Minn.)" . . . "Mississippi River Improvement Convention (1877 : Saint Paul, Minn.)" . . . "Mississippi River Improvement Convention (St. Paul, Minn. : 1877)" . . .