Marlin ISD wrapping up successful school year despite numerous hurdles and last updated 2021-05-07 09:50:49-04 MARLIN, TX â The future is looking bright for Marlin ISD as the district perseveres through a pandemic, an ice storm, even through scares that the district lost its accreditation due to poor test scores. That's when Marlin ISD hired a new superintendent, Dr. Darryl Henson. "All of our goals this year were focused on academics making sure that we increase our rates of literacy, from pre-k through 4th grade, and of course mathematics, improving education to make sure all kids can pass algebra 1 by the 9th grade" says Henson.