The Pilgrims were 3-1 victors over FC Halifax Town at Huddersfield Amateur, courtesy of Jack Waddington's 22nd minute opener and Johnson's brace in the 38th and 75th minutes.
Halifax had reduced the arrears to 2-1 five minutes after half-time, but the Pilgrims were fully deserving of their opening three-point haul.
Boston (4-3-3): Jake Frestle; Joe Hardstaff, Owen Sheriff, Bailey Dilley, Ben Robson; Finlay Armond, Joe Melson, Jack Waddington; Ashton Taylor, Tom Wilkinson, Ben Johnson. Subs (ON): Charlie Earth, Elliot Foster.