The 577 students of Vicksburg Catholic School — St. Aloysius High School and St. Francis Xavier Elementary — line up on Balzli Field at Farrell Stadium Wednesday to form a giant “1-5-0” and a cross in celebration of 150 years of Catholic education in Vicksburg. The anniversary will be marked on the weekend of Oct. 29-30 with such events as a golf scramble, street party, tours of the Cobb House, St. Mary’s the Sisters of Mercy Convent and Pemberton’s Headquarters and a gala at the Southern Cultural Heritage Center. Catholic education in Vicksburg began in 1860 when the Religious Sisters of Mercy opened a school and continued as the Brothers of Sacred Heart opened St. Aloysius for boys in 1879 and the Sisters of the Holy Spirit opened the doors of St. Mary’s Catholic School in 1906.