I see Phoebe is the daughter of Edward & Mary Otis I have her married to George Allman, with these children: Charles Allman b: 1814
Has No Children Nancy Allman b: 1816 Has Children Daniel Allman b: 1818 in Ohio Has No Children Mary Allman b: 1820 Has No Children William Allman b: 1821 Has No Children Tiplon Allman b: 1824 Source: Ancestry World Family Tree Project (quite old post with out sources)
Source: 17. History of Stark County, Ohio, edited by: William Henry Perrin, Baskin & Battey, HIstorical Publishers, 186 Dearborn St. Chicago, ill. 1881, LDS genealogy Library, US/CAn 977.162 H2 p 1977, this book is also on Micro film w/LDS
You may be able to glean some more information from these sources:
source: 1769. Daughters of American Revolution: DAR member: Dorothy Lee Serviss Pattison, National Number: 420181, OTIS, EDWARD ancestor#A084802, signed: Dorthy Serviss Pattison 14 Dec. 1978, Location: Bartellsville, Oklahoma, Notes: lists sources given by DAR member, Daughters of the American Revolution,
1423. ÒRoster of Soldiers and Patriots of American Revolution - Buried in Indiana,Ó compiled & edited by: Mrs Roscoe C. OÕByrne, chairman, Publ. Clearfield , pg 282, Otis, Edward information, collected by; Mrs Carrie H. Tourne, Laporte, Indiana.
1430. ÒOtis Family - Data Base online - Ancestry.com,Ó orig. Source: American Genealogical-Biographical Index (AGBI),
I'm still checking your posts to see why you suspect George Washington to have any connections to the Otis family.