The Gruss Family of Baltimore, MD

My name is Charles I am researching the Gruss family from Schleckwerth, Austria. Karl Gruss entered the United States in 1908 through Locust Point Maryland. the only info known about Karl before arriving in 1908 is his father's was Frank. Karl married Anna Reich (birth-name Cyglicki) in 1915. They had four childern: Karl, Elizabeth, Helen and Joseph.

In addition, I'm researching the Marks and Leibmann families. Melvin C. Marks born in 1901 in Washington D.C. was my grandfather, but he passed away 3 months prior to the birth of my mother in 1927. I have info on Melvin's mother Alice Ford of Montgomery Co. MD, and her family, but nothing on his father or his family. Gustav Leibmann of Baltimore, MD, was born in Baltimore in 1871. His father Morris (Moritz)was born in Bohemia around 1845 and came to the U.S. in 1869 with his wife Alma and infant son Bruno. Gustav married Bessie Luhn of Montgomery Co. MD, and they had four childern: Ruth, Dorothy, Gustav and Anne.

Any information would be appreciated. I am also willing to share the information that I have.