Complex sentence: Unable to repay construction costs, the federal government translated CNoR's debts into majority control of the company and on September 6,1918, the directors of CNoR, including MacKenzie and Mann, resigned.
Split into simpler sentences: Unable to repay construction costs, the federal government nationalized CNoR. The federal government gained majority control of shares due to company indebtedness and on September 6,1918, the directors of CNoR, including MacKenzie and Mann, resigned.