Answer:
Since there is nothing underlined, I will identify the part of speech for every word.
Dolley - proper noun
Madison - proper noun
the - definite article
wife - common noun, singular, countable
of - preposition
the - definite article
fourth - adjective
United States - proper noun
president - common noun, singular, countable
is - present form of the auxiliary verb to be in third person
one - cardinal number
of - preposition
history`s - abstract noun, singular, countable (possessive form - Saxon genitive)
many - adjective
interesting - adjective
women - common noun, plural, countable
