In May 1646 James Herbert (age 23) was elected MP Queenborough in the Third Protectorate Parliament.

In 1659 Henry Carey 4th Viscount Falkland (age 25) was elected MP Oxfordshire during the Third Protectorate Parliament.

In 1659 Edward Hungerford (age 26) was elected MP Chippenham during the Third Protectorate Parliament.

In 1659 William Wray 1st Baronet (age 34) was elected MP Grimsby during the Third Protectorate Parliament.

In 1659 William Wyndham 1st Baronet (age 27) was elected MP Taunton during the Third Protectorate Parliament.

In 1659 William Glynne 1st Baronet (age 20) was elected MP Caernarfon during the Third Protectorate Parliament.

In 1659 Thomas Archer (age 39) was elected MP Warwick during the Third Protectorate Parliament.

In 1659 William Borlase (age 38) was elected MP Great Marlow in the Third Protectorate Parliament.

In 1659 Thomas Crew 2nd Baron Crew (age 35) was elected MP Brackley during the Third Protectorate Parliament.

In 1659 Richard Jennings (age 40) was elected MP St Albans during the Third Protectorate Parliament.

In 1659 Robert Pye (age 39) was elected MP Berkshire during the Third Protectorate Parliament.

In 1659 Josiah Child (age 27) was elected MP Petersfield during the Third Protectorate Parliament.

In 1659 Francis Bacon (age 58) was elected MP Ipswich in the Third Protectorate Parliament.

In 1659 John Bernard 2nd Baronet (age 28) was elected MP Huntingdon in the Third Protectorate Parliament.

From 27 Jan 1659 the Third Protectorate Parliament sat for one session until 22 Apr 1659.