Volunteers from Vertex Inc. spent the day, Tuesday, at Henry Houston School as reported during Action News at 4 on April 23, 2019.ROXBOROUGH (WPVI) -- Volunteers from Vertex Inc. spent the day, Tuesday, at Henry Houston School in Philadelphia's Roxborough section.They helped create murals and an outdoor courtyard for the school. The volunteers also hosted a series of STEM-focused workshops for the students.It was all part of the inaugural Vertex Global Day of Service. Report a correction or typo