The Castro in San Francisco City and County, California — The American West (Pacific Coastal)

Roger Casement

1864-1916

— Rainbow Honor Walk —

Roger Casement Marker image. Click for full size.

Photographed by Andrew Ruppenstein, August 21, 2026

1. Roger Casement Marker

Inscription. Irish patriot, diplomat and pioneering activist for the human rights of indigenous peoples, martyred for his pivotal role in Ireland's 1916 Easter Rising

Erected 2025 by Rainbow Honor Walk.

Topics and series. This historical marker is listed in these topic lists: Civil Rights • Indigenous Peoples and Communities • Wars, Non-US. In addition, it is included in the Rainbow Honor Walk series list. A significant historical date for this entry is August 3, 1916.

Location. 37° 45.638′ N, 122° 26.094′ W. Marker is in San Francisco, California, in San Francisco City and County. It is in The Castro. It is at the intersection of Castro Street and 18th Street, on the right when traveling north on Castro Street. Touch for map. Marker is at or near this postal address: 501 Castro Street, San Francisco CA 94114, United States of America. Touch for directions.

Regionally, this marker is on California’s Coast Ranges.

It is also on the American Pacific Coast.

Globally, it is in North America,

on the Ring of Fire,

in the Pacific Rim,

in the Western Hemisphere,

in the Western World,

and in the Anglosphere.

Historically,

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it finds itself in what was once New Spain

and also Mexico’s Alta California.

Other nearby markers. At least 8 other markers are within walking distance of this marker: Alan Turing (a few steps from this marker); Bob A. Ross (a few steps from this marker); Allen Ginsberg (within shouting distance of this marker); Leonard Matlovich (within shouting distance of this marker); Sylvester (within shouting distance of this marker); Federico Garcia Lorca (within shouting distance of this marker); Tom Waddell (within shouting distance of this marker); Keith Haring (within shouting distance of this marker). Touch for a list and map of all markers in San Francisco.

Related marker. Click here for another marker that is related to this marker.

Also see . . .
1. Who was Roger Casement? Irish diplomat, historical figure honored in SF Castro. KTVU video (8:16) including dedication of the plaque, plus a short interview with Consul General of Ireland to the Western United States, Micheal Smith. Also includes extended text. (Submitted on August 27, 2026.)

2. Roger Casement (Wikipedia). Overview:

Roger David Casement (Irish:
Photographed by Andrew Ruppenstein, August 21, 2026

2. Roger Casement Marker - wide view
Ruairí Dáithí Mac Easmainn; 1 September 1864 – 3 August 1916), known as Sir Roger Casement, CMG, between 1911 and 1916, was a diplomat and Irish nationalist executed by the United Kingdom for treason during World War I.

He worked for the British Foreign Office as a diplomat, becoming known as a humanitarian activist, and later as a poet and Easter Rising leader. Described as the "father of twentieth-century human rights investigations", he was honoured in 1905 for the Casement Report on the Congo Free State and knighted in 1911 for his important investigations of human rights abuses in the rubber industry in Peru.

(Submitted on August 27, 2026.)

Portrait of Roger Casement image. Click for full size.

Digital Library @ Villanova University

3. Portrait of Roger Casement

Credits. This page was last revised on August 27, 2026. It was originally submitted on August 21, 2026, by Andrew Ruppenstein of Lamorinda, California. This page has been viewed 58 times since then. Photos: 1, 2. submitted on August 21, 2026, by Andrew Ruppenstein of Lamorinda, California. 3. submitted on August 27, 2026, by Andrew Ruppenstein of Lamorinda, California.