Conversation so far:
What year was Irving Thalberg born?
Thalberg was born in Brooklyn, to German Jewish immigrant parents.
Who were his parents?
Jewish immigrant parents, William and Henrietta (Haymann).
Did he have any siblings?
Shortly after birth, he was diagnosed with "blue baby syndrome," caused by a congenital disease that limited the oxygen supply to his heart.
Did this impact him at all in life?
The prognosis from the family's doctor and specialists was that he might live to age twenty, or at most, age thirty.
Where did he go to school?
During his high school years in Brooklyn, he began having attacks of chest pains, dizziness and fatigue.
This affected his ability to study.
What caused his illness in high school?
When he was 17, he contracted rheumatic fever, and was confined to bed for a year.
His mother, Henrietta, to prevent him falling too far behind other students.
Did he graduate?
brought him homework from school, books, and tutors to teach him at home.
She also hoped that the schoolwork and reading would distract him.
What did he do after school?
When Thalberg returned to school, he finished high school but lacked the stamina for college, which he felt would have required constant late-night studying and cramming for exams.
anything else in this article?
Instead, he took part-time jobs as a store clerk, and in the evenings, to gain some job skills, taught himself typing, shorthand and Spanish at a night vocational school.

Question: Where did he work as being a store clerk?
Self-contained rewrite: Where did Irving Thalberg work as being a store clerk?