in office

References in classic literature ?
No Senator or Representative shall, during the Time for which he was elected, be appointed to any civil Office under the authority of the United States, which shall have been created, or the Emoluments whereof shall have been increased during such time; and no Person holding any Office under the United States, shall be a Member of either House during his Continuance in Office.
The Judges, both of the supreme and inferior Courts, shall hold their Offices during good behavior, and shall, at stated Times, receive for their Services, a Compensation, which shall not be diminished during their Continuance in Office.
But this hypothesis, such as it is, has already been refuted in the remarks applied to the duration in office prescribed for the senators.
The President is to continue in office for the period of four years; as in New York and Delaware, the chief magistrate is elected for three years, and in South Carolina for two years.
Rome was not built in a day, and we have lots of money at our backs, though we don't cut much dash yet in offices.
and employs 50 professionals in offices throughout Europe.