He is credited with co-authoring the first Kannada–English dictionary, published in 1858 by the Wesleyan Mission Press with the financial support by Sir Mark Cubbon.
Daniel Sanderson, who writing for the Wesleyan Juvenile Offering describes life in the Bangalore Pete in the 19th century.
Writing on 24 November 1858, Sarah describes the Wesleyan Mission School and Chapel in a Pariah village near the Bangalore Petah.
The petah had nearly 200–300 temples or shrines, whose deities were anointed with oil making them greasy and black, and offered flowers and fruit.
Further, she says that her children liked walking the busy streets of the petah to reach the chapel along with their father, observing its noise, local people, shops and the monkeys.
Sarah describes some events such as a postman walking up to the pulpit to deliver a letter to the preacher in the middle of his sermon on a Sunday.