Robert Walter Weir (June 18, 1803 – May 1, 1889) was an American artist and educator and is considered a painter of the Hudson River School.

[9] Son John Ferguson Weir (born 1841) was a painter and sculptor who became a Member of the National Academy of Design in 1866, and was made director of the Yale University Art School in 1868.

Son Julian Alden Weir (born 1852) studied under his father and under J.-L. Gérôme and became a distinguished portrait, figure, and landscape painter.

[2] Daughter Emma Weir married Thomas Lincoln Casey Sr., an American army officer and Chief of Engineers.

Daughter Helen Rutgers Weir married Thomas Sturgis, a developer of Cheyenne, Wyoming, and the second New York City Fire Commissioner.

Among those are Greek Lovers (1830), Bourbon's Last March (1835), Sunset on the Hudson (1850), and The Spy (1836), the last of which being inspired by James Fenimore Cooper's 1821 novel of the same name.