Some cars leave a paper trail; the Oldsmobile Light Eight left a name and a place in Oldsmobile's list. What follows is what can be said with a source behind it.
Where it came from
The Oldsmobile Light Eight was an automobile produced by the Oldsmobile Division of General Motors in roadster, two-door coupe, four-door sedan from between 1916 and 1923. It was powered by a sidevalve V8 engine, the maker's first, and shared with the 1916 Oakland Model 50. The Light Eight was an all new platform, and was produced at the Lansing Car Assembly, with its engine sourced from Northway Engine Works.
and coachwork supplied by Fisher Body. It shared wheelbases with the Buick Six, and was more expensive than the market favorite Ford Model T, but offered the durability of a V8 and a wider range of bodystyles. The Light Eight was replaced by the General Motors Companion Make Program Viking introduced in 1929 and the Oldsmobile L-Series.
In context
Where it sits in Oldsmobile's history is not in doubt: the Oldsmobile L-Series followed it; it was built at Lansing, Michigan (Lansing Car Assembly), United States. Nearby in the Oldsmobile catalogue sit the Oldsmobile 442 and the Oldsmobile 88.