This phrase identifies a selected entity probably positioned in a selected metropolis and state. The parts recommend a enterprise, group, or probably people related to the locality of Quincy, Illinois. Evaluation of every factor factors towards a correct noun building, with “Duker and Haugh” functioning as a compound noun designating the entity’s title, and “Quincy, Illinois” performing as a locative noun phrase specifying its geographic placement.
The relevance of this identifier stems from its function in pinpointing a topic inside a broader geographic space. Realizing the situation helps to contextualize the topic, enabling focused analysis, whether or not it entails exploring native enterprise exercise, historic data, or group demographics. The conjunction of the title with the situation ensures the correct identification of a single supply.