Question: At what time did the land rush Robert Galbreath, Jr. and his brother, Herman, begin?

<P0-S0> Robert Galbreath, Jr. (1863–1953) was a pioneer entrepreneur, wildcatter and oilman in Oklahoma. <P0-S1>  A native of Ohio, he traveled to Kansas and California in the late 19th century. <P0-S2>  Returning East by way of Indian Territory, he participated with his brother, Herman, in the Land Rush of 1889 for the Unassigned Lands. <P0-S3>  Afterward, he sold his claim and settled in the new town of Edmond. <P0-S4>  He became an early wildcatter and oil producer. <P0-S5>  His most notable accomplishment was the discovery of the Glenn Pool oilfield. <SEP> <P1-S0> Daniel "Danny" Simmons Jr. is a neo-African abstract expressionist painter and the older brother of hip-hop impresario Russell Simmons and rapper Joseph Simmons ("Reverend Run" of Run–D.M.C.). <P1-S1>  He is the co-founder and Chairman of Rush Philanthropic Arts Foundation (since 1995), which provides disadvantaged urban youth with arts access and education. <P1-S2>  As part of Rush Philanthropic, Simmons also founded Rush Arts Gallery and soon thereafter converted part of his loft in Brooklyn into the Corridor Gallery. <P1-S3>  Both galleries provide exhibition opportunities to early and mid-career artists who do not have commercial representation through galleries or private dealers. <P1-S4>  Along with his brother Russell, Simmons established Def Poetry Jam, which has enjoyed long-running success on HBO. <P1-S5>  In 2004, Simmons published "Three Days As the Crow Flies", a fictional account of the 1980s New York art scene. <P1-S6>  He has also written a book of artwork and poetry called "I Dreamed My People Were Calling But I Couldn't Find My Way Home". <P1-S7>  He has also published " Deep in your best reflection" and "the Brown beatnik tomes", two additional volumes of poetry. <P1-S8>  In 2015 Simmons moved to Philadelphia and opened Rush Arts Philadelphia gallery ( RAP ) to further the Rush Arts mission and to begin to create a national presence for the service organization . <SEP> <P2-S0> The Oklahoma Land Rush of 1889 was the first land rush into the Unassigned Lands. <P2-S1>  The area that was opened to settlement included all or part of the present-day Canadian, Cleveland, Kingfisher, Logan, Oklahoma, and Payne counties of the US state of Oklahoma. <P2-S2>  The land run started at high noon on April 22, 1889, with an estimated 50,000 people lined up for their piece of the available two million acres (8,000 km²). <SEP> <P3-S0> William Matthew "Bill" Tilghman Jr. (July 4, 1854 – November 1, 1924) was a career lawman and gunfighter during the Wild West days of Kansas and Oklahoma. <P3-S1>  He was city marshal in Dodge City, participated in the Kansas County Seat Wars, and moved on to Oklahoma where he participated in the land rushes, including the Cherokee Strip Land Rush. <P3-S2>  He served as a Deputy U.S. Marshal in Oklahoma and was celebrated for capturing the outlaw Bill Doolin. <P3-S3>  Tilghman never achieved the household-word status of his close friends Wyatt Earp and Bat Masterson but released his memoirs in a film that he directed and starred in as himself. <P3-S4>  He died at the age of seventy, after being shot down on the streets of Cromwell, Oklahoma. <P3-S5>  The fame that Bill Tilghman did achieve was largely due to the efforts of his second wife, who wrote his biography in 1949.