He was also said to have taken the time to write a letter to another president -- Abraham Lincoln -- during the height of the war , to inform him that Robert Todd Lincoln , then a Harvard student , had been caught smoking .
Abraham Lincoln /people/person/children Robert Todd Lincoln
PRP VBD RB VBD TO VB VBN DT NN TO VB DT NN TO DT NN : NNP NNP : IN DT NN IN DT NN , TO VB PRP IN NNP NNP NNP , RB DT NNP NN , VBD VBN VBN NN .
Abraham Lincoln
PERSON
Robert Todd Lincoln
PERSON
/people/person/children