Complex sentence: In 1876 he was superintendent of construction of the Customs House in Charleston, an office he held until the building was finished in 1877, the same year as he was accused by the anti-Reconstruction elements in the General Assembly, of embezzlement while superintendent of the penitentiary.
Split into simpler sentences: In 1876 he was superintendent of construction of the Customs House in Charleston, an office he held until the building was finished the next year. The same year as he was accused by the anti-Reconstruction elements in the General Assembly, of embezzlement while superintendent of the penitentiary.