.  Micajah SIAS, b. 1793/4, MD

.  Beale SIAS, b. bef. 1802
.  Joshua SIAS, b. bef. 1802
.  Delilah SIAS, b. bef. 1802
.  Matilda SIAS, b. bef. 1802

1.  Letter, dated 19 Jun 1858, from Keziah (GREENLAND) SHANAFELT (click her link for a full transcription) of Clarion Co., PA, to her son, Thomas.  Keziah is a granddaughter of Benjamin & Sarah (SIAS) CORBIN.  The letter is in the possession of  Laurel Shanafelt Powell of Colorado, and Lorinda Clendenon Greenland generously posted a transcription at her web site. 

My mother's father was Benjamin Corbin; her mother Sarah Sias.  I think they both came from England.  Their ancestors lived in England where some of them still remain...  Grandmother had two brothers -- Joseph and Benjamin Sias.  I remember seeing them many years ago. They moved to Ohio...

Obviously, Benjamin did not move to Ohio.  Perhaps Joseph did, but unfortunately, the first census taken in Ohio wasn't until 1820, and we do not find him.

2.  1790 Census Images (online at Ancestry.com; extracted by Diana Gale Matthiesen):

1790

MD

Baltimore Co.

Patapsco Lower Hundred

p. 204

Benjn Sias

1-1-2-0-0

These data indicate:

Gender and Type	Age Class	Therefore Born	Individuals Inferred
1 free white male	16 or over	in or bef. 1774	= Benjamin
1 free white male	15 or under	1774-1790	= Son A
2 free white females	all ages	in or bef. 1790	= Susanna = Daughter A

3.  Census Index:  U.S. Selected Counties, 1800 (Broderbund CD-312):  there was no 1800 census in Baltimore Co., MD.

4.  Will of Benjamin Sias.