Here is a family history from Louis Lange, son of Richard & Lydia Rachuig Lange. I've included a picture of Louis from a Rachuig family reunion in the mid-1990s. He's pictured on the left. His cousin, Charles Rachuig, is sitting across the table. Louis was born in 1912. I don't have the exact date of his death, but it was sometime in the late 1990s.
Link to Lange - Rachuig Family History
I found this document which listed the embarkation requirements for emigration from Bremen, Germany to the US in 1837. August Rachuig emigrated from Bremen in 1868, but I doubt the requirements were much different from those listed here. Unfortunately, most of Bremen's emigration documents were destroyed by bombing raids in WWII. Hamburg's records are still in tact, but my ancestors didn't emigrate from that port.
Link to Document
Here is a photo of August William Rachuig. He was the grandson of August & Henrietta Rachuig; son of Rudolph Otto Rachuig; and, father of Robert Rachuig & Gale Rachuig Hicks. I got this photo from Robert. It's undated, but I think it was taken in the early or mid 1960s. (A.W. died in 1969.)
This is a picture of Alvina Beyerstedt Rachuig, wife of Walter Alfred Rachuig, Sr. Walter was the second child and oldest son of Julius and Selma Rachuig. This photo is undated, but it must have been taken around the time of her wedding to Walter (1917).
I got this picture from my aunt, Mayme Rachuig Hause. As you can see it shows the Bernhardt Family Band. I don't have a date or location, but I presume it came from the Bosque County (Texas) Library.
The Bernhard and Rachuig families have close ties, intermarrying in various generations. Since they both emigrated from Posen and settled initially in Washington County (Texas), they very likely knew each other back in the old country.
Henrietta Bernhardt is the matriarch of the Rachuig branch of the extended Rachuig-Rachui-Rachuy family. (She and August Rachuig are my great-great-grandparents. They created the variant spelling which added a 'g' to the end of their surname. As I pointed out in an earlier posting, they are identified as Rachui on the 1880 US Census.)