Wollbrinck was nearly bankrupted in a downturn of the housing market, but under the name "Central Amusement Company" he ran "Old St. Louis" and another concession at the 1904 St. Louis World's Fair, after which he became a clerk in the Assessor's office (until 1908, when he was shuffled out in a change of administration).
Wollbrinck nearly went out of business due to a housing market downturn but managed to keep his businesses afloat under the "Central Amusement Company" name at the 1904 St. Louis World's Fair, and later transitioned into an administrative position as a clerk until 1908.