Image from Wikimedia Commons
Kasper2006 - Public Domain
Zeitschrift für Sukkulentenkunde - Public Domain
William Segar - Public Domain
femme de Pierre Vellones - CC BY-SA 3.0
MichaelNetzer - CC BY-SA 3.0
Col. I.W. Avery - Public Domain
Library of Congress - Public Domain
Gabriel Aubert (died 1847) - Public Domain
United States Senate Historical Office - Public Domain
b r e n t - CC BY 2.0
unknown - Public Domain
Edward Haytley (ca 1740-1764) - Public Domain
Unknown, irrelevant due to age - Public Domain
Roscoe C. E. Brown, Ray B. Smith - Public Domain
Tricia - CC BY-SA 2.0
United States House of Representatives official office of Delegate Luis Fortuno - Public Domain
Crico - CC BY-SA 4.0
Drrcs15 - CC BY-SA 4.0
Allan warren - CC BY-SA 3.0
L. U. Reavis is the book's author. I couldn't find any specific citation for the illustrator - Public Domain
Sylvia Mangold -
Image from Wikimedia Commons
Kasper2006 - Public Domain
Schumacher, Joel, 1939-....
Image from Wikimedia Commons
Coquelin, Ernest
Image from Wikimedia Commons
Zeitschrift für Sukkulentenkunde - Public Domain
Rose, J. N. (Joseph Nelson), 1862-1928
Image from Wikimedia Commons
Delany, Ronnie
Image from Wikimedia Commons
Gualtieri di Brienne, duca di Atene, -1356
Image from Wikimedia Commons
Kléber, Jean-Baptiste, 1753-1800
Image from Wikimedia Commons
William Segar - Public Domain
Shrewsbury, Gilbert Talbot, Earl of, 1552-1616
Image from Wikimedia Commons
femme de Pierre Vellones - CC BY-SA 3.0
Martenot, Maurice, 1898-1980
Image from Wikimedia Commons
MichaelNetzer - CC BY-SA 3.0
Rogers, Marshall
Image from Wikimedia Commons
Col. I.W. Avery - Public Domain
Norrman, Gottfried Leonard, -1909
Image from Wikimedia Commons
Library of Congress - Public Domain
Hiatt, Fred
Image from Wikimedia Commons
Gabriel Aubert (died 1847) - Public Domain
Dumanoir, M. (Philippe), 1806-1865
Image from Wikimedia Commons
Seton, Elizabeth Ann, Saint, 1774-1821
Image from Wikimedia Commons
United States Senate Historical Office - Public Domain
Miller, H. V. M. (Homer Virgil Milton), 1814-1896
Image from Wikimedia Commons
Cutting, F. B. (Francis Brockholst), 1804-1870
Image from Wikimedia Commons
Wyatt, Thomas, 1521?-1554
Image from Wikimedia Commons
b r e n t - CC BY 2.0
Patty, Sandi, 1956-
Image from Wikimedia Commons
unknown - Public Domain
Cockle, James, 1819-1895
Image from Wikimedia Commons
Edward Haytley (ca 1740-1764) - Public Domain
Scott, Sarah, 1723-1795
Image from Wikimedia Commons
Ribera, Jusepe de, 1591-1652
Image from Wikimedia Commons
Unknown, irrelevant due to age - Public Domain
Rust, Albert, -1870
Image from Wikimedia Commons
Duport, Adrien Jean François, 1759-1798
Image from Wikimedia Commons
Roscoe C. E. Brown, Ray B. Smith - Public Domain
Wadsworth, James Wolcott, 1846-1926
Image from Wikimedia Commons
Tricia - CC BY-SA 2.0
Adams, Scott, 1957-....
Image from Wikimedia Commons
United States House of Representatives official office of Delegate Luis Fortuno - Public Domain
Fortuño, Luis G. (Luis Guillermo), 1960-
Image from Wikimedia Commons
Crico - CC BY-SA 4.0
Wheatley, Nadia
Image from Wikimedia Commons
Drrcs15 - CC BY-SA 4.0
Schonberg, Harold C.
Image from Wikimedia Commons
Allan warren - CC BY-SA 3.0
Harty, Russell, 1934-
Image from Wikimedia Commons
L. U. Reavis is the book's author. I couldn't find any specific citation for the illustrator - Public Domain
Allen, Thomas, 1813-1882
Image from Wikimedia Commons
Sylvia Mangold -
Mangold, Robert, 1937-....