I'm sorry, I don't know who Molly Line is specifically. There could be many people named Molly Line. Maybe she is an ordinary person living her own unique life, or she could be someone known in a particular community or field.
In some historical or cultural contexts, the line of descent might be related to royalty or noble families. Their lines of descent were carefully documented. These lines were important for inheritance of titles, lands, and power. A king's line of descent determined who would be the next in line to the throne, and it was often a complex web of relationships and rules.
I'm not sure which specific 'first fall on line story' you are referring to. There could be many stories related to a first fall in different contexts, like the first fall in a new sport, or the first fall of a character in a story. Can you be more specific?