Before I make the update for the 1910s, here are a few more PODs:
July 1st-6th, 1915: East St. Louis Riots; Federal troops are ordered into East Saint Louis, Missouri after race riots spread across the city...
July 12th, 1915: Bisbee Massacre; Local vigilantes burn the Mexican-American town of Bisbee, Arizona after rumors of a "Mexican fifth column"...
July 28th-29th, 1915; Harlem Riots; Race riots erupt in Harlem, New York after rumors that African-Americans are aiding Mexican forces...
September 17th, 1915: Local vigilantes attack the town of Hermanas, New Mexico, amidst rumors of the rape of a white woman...
May 10th-October 1st, 1917; Red Hot Summer of 1917; Race riots, targetting African-Americans and Mexican-Americans, erupt in Charleston, South Carolina; Philadelphia, Pennsylvania; Baltimore, Maryland; Washington D.C.; Norfolk, Virginia; New Orleans, Louisiana; Chicago, Illinois; New York City, New York; and Omaha, Nebraska...
June 27th, 1917: Annapolis Riots; African-American naval recruits are lynched outside the U.S. Naval Academy in Annapolis, Maryland...
September 30th, 1917: Elaine Massacre; 285 African-Americans are lynched and killed Philips County, Arkansas after 1,000 African-Americans call for wages from share-cropping...
May 30-31, 1919: Tulsa Race Riots; Race riots against African-Americans erupt in the Greenwood section of Tulsa, Oklahoma, leaving c.10,000 people homeless...