The effect of telling this story in chronological order is It helps the reader understand how the UMWA affected labor movements through history.
Chronological structuring refers to the works with the timeline. In the above passage it provides the history of the UMWA, on how it influenced the political parties in 1901 and later in 1903, how they asserted their power and in 1908, company's owner voted to cut down wages.
The sequence is chronological in accordance with a timeline which moves the story effectively and shows how thing moved over time. It helps in solving the riddles by getting together the facts.
I think its would be false because personification is when the person or thing embodying a quality or the like; an embodiment or <span>incarnation but it also has other defintions but dealing with sounds isn't one of them</span>