Bremen emigration of Heinrich & Bernardina Gieske, 1882 or 1883

I know that many Bremen passenger ship lists were destroyed when that city was bombed in WWII.

However, I am still hoping to find a record of the emigration of brother & sister Heinrich & Bernardina Gieske, from Neuenkirchen, Oldenburg.

• According to US Census (1900, 1910, 1930), Heinrich Gieske arrived in 1882.
• According to US Census 1900, Bernardina Gieske Stuntebeck arrived in 1883.

Maybe more likely they came together?

Any help is greatly appreciated.