It's possible Catherine WELLER is his mom. Just an avenue to explore. Remember, not everything is online yet.
Name: Benjamin Hause
Birth Year: abt 1823
Home in 1850: District 2, Washington, Maryland, USA
Family Number: 742
Benjamin Hause 27
Catharine Weller 60
Isabella Weller 20
Catharine Schley 4
John Hause 25
Thomas McMullen 12
Henry Jones 65 Wales
all b MD
I don't know if the HAUSE family was always in Washington Co, but 1790 there was John, Leonard, Peter. If Benj had a son, it would've been helpful. :-)
This was a 1996 query on the Wash Co website
QRYTEXT:Searching for the parents of George HAUSE, born 20 Jan 1803. Married
Catherine SHEITZ, 18 Apr 1825, St. Peter's Lutheran (Beards Church) Washington Co.,
MD, died 20 Mar 1830. Siblings believed to be: William HAUSE, b. 1804, Samuel
HAUS/HAUSE b.2 May 1805, Elizabeth HAUSE b. 1806, m. William FIELDS, Jacob HAUSE, b. 1807, and John HAUSE, b. 1808.
The website fizzled out on me and didn't get a chance to enter WELLER.
You might try here for some info..... http://msa.maryland.gov/
I didn't find a probate record for Benj.https://www.familysearch.org/ark:/61903/3:1:3QS7-89L3-HJP2?o...