Petty Bourgeoisie (Petite Bourgeoisie) - (Kagan will refer to them as “artisans”)
Urban Shopkeepers class. They are the skilled artisans / craftsmen who own their own business, control their life and make just enough to do well in good times but struggle in bad ones. Sometimes classified as a lower tier of the middle class, and sometimes as the top tier of the lower class. I think Kagan places them at the top of the lower class. Important: the industrial revolution is slowing squeezing them out of existence. Old social safety nets (family, community, guilds) cannot keep up with the disruptions.