Original sentence: Between 1640-1655, since a man could only serve a one-year term as governor consecutively at the time, Hopkins and John Haynes (Connecticut's first governor, elected 1639) would trade off as governor (save one term by George Wyllys), each serving as Deputy Governor to the other when not governor
Edited sentence: Between 1640–1655, since a man could only serve a one-year term as governor consecutively at the time, Hopkins and John Haynes (Connecticut's first governor, elected 1639) would trade off as governor (save one term by George Wyllys), each serving as Deputy Governor to the other when not governor