, ▁ 1 8 5 6 ▁| - ▁| ▁ ▁| ▁ ▁| ▁Thomas ▁H . ▁Bay ly ▁( D ) ▁| ▁style =" font - size : 8 0 %" ▁| ▁D ied ▁June ▁ 2 3 , ▁ 1 8 5 6 ▁| ▁ ▁| ▁Mus co e ▁R . ▁H . ▁Gar nett ▁( D ) ▁| ▁Se ated ▁December ▁ 1 , ▁ 1 8 5 6 ▁| - ▁| ▁ ▁| ▁ ▁| ▁Laur ence ▁M . ▁Ke itt ▁( D ) ▁| ▁style =" font - size : 8 0 %" ▁| ▁Res igned ▁July ▁ 1 5 , ▁ 1 8 5 6 , ▁after ▁being ▁cens ured ▁in ▁his ▁role ▁in ▁the ▁assault ▁on ▁US ▁Senator ▁Charles ▁Sum ner . ▁ ▁He ▁was ▁subsequently ▁re - elect ed ▁to ▁fill ▁the ▁vac ancy ▁| ▁ ▁| ▁Laur ence ▁M . ▁Ke itt ▁( D ) ▁| ▁Se ated ▁August ▁ 6 , ▁ 1 8 5 6 ▁| - ▁| ▁ ▁| ▁ ▁| ▁Pr eston ▁Bro oks ▁( D ) ▁| ▁style =" font - size : 8 0 %" ▁| ▁Res igned ▁July ▁ 1 5 , ▁ 1 8 5 6 , ▁after ▁assault ing ▁US ▁Senator ▁Charles ▁Sum ner . ▁ ▁He ▁was ▁subsequently ▁re - elect ed ▁to ▁fill ▁the ▁vac ancy ▁| ▁ ▁| ▁Pr eston ▁Bro oks ▁( D ) ▁| ▁Se ated ▁August ▁ 1 , ▁ 1 8 5 6 ▁| - ▁| ▁ ▁| ▁