She could trace the events of her life by such things.
You can still trace the old course by the lush growth of bushes and trees.
I was dropped off a block away so no one could trace me by cab numbers to the murder site.
She traced the route of the road passing by the house, and discovered a horse running along it.
You may be, able to trace the murderer by it.
In fact, they trace their genealogies always by the female line.
With the start that they had gained, tracing them by clues would be better than pursuit.
From this memory he began to trace his childhood step by step.
This was really something quite new - tracing a criminal by his voice-print.
I traced him by the bug sewn in his pants.