We have four Lendrems listed in the Philadelphia Directory in 1863.
They are Eliza Lendrem, Jane Lendrem, Robert Lendrem, Sarah Lendrem.
Robert is listed as a bookkeeper.
And the ladies are listed as gentlewomen.
Philadelphia Directory for ... containing the names of the inhabitants, their occupations, places of business, and dwelling houses: Ab ed. 26 m. d. Tit. : McElroy's Philadelphia city directory, Volume 26(Google eBook)