Biography
Alberto Sanchez was arrested during the Puerto Rican sugar and waterfront strike movement. The Daily Worker of March 2, 1935, page 3, individually names him among four people arrested while leading two hundred unemployed workers supporting the strikers. It identifies Alberto Sanchez as a Communist leader. The article describes repression by the Winship colonial government and police. It does not provide exact arrest dates, an individual charge, institution or outcome. Source: https://www.marxists.org/history/usa/pubs/dailyworker/1935/v12-n053-NAT-mar-02-1935-DW-Q.pdf
Labor Defender, March 1935, PDF page 20: The colonial-repression article individually names the Communist leader among workers rounded up and jailed during Puerto Rican sugar and dock strikes. It adds contemporary corroboration of the existing strike-related custody without an exact admission, charge, release or completed duration. Source: https://www.marxists.org/history/usa/pubs/labordefender/1935/v11n03-mar-1935-orig-LD.pdf#page=20