The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
The actions that James Carlton took that shows personal interest were family activities and religious activities in the church.
We are talking about William James Carlton(1838-1902), a volunteer during the Civil War in the United States that decided to write a diary where he shared personal interests and activities during the time of war. He later decided to work in advertising to place ads about family activities, church activities, and businesses in local newspapers or religious publications. Years later he hired a man that was an important figure in the advertising industry of America: Walter Thompson.