This date was January 6, 1959, which was two weeks before the beginning of the seventh administrative year of Governor J. Caleb Boggs and the third administrative year of David P. Buckson as Lieutenant Governor.

Likewise the current distribution of the House Assembly seats was made to fifteen representatives for New Castle County and for ten representatives each to Kent and Sussex counties.

The actual population changes of the county did not directly affect the number of senators or representatives at this time.

In the 120th Delaware General Assembly session, both chambers had a Democratic majority.

About half of the State Senators were elected every two years for a four-year term.