Hi Barbara,   I use HeritageQuest from my local library,  and I just checked and there were about 100  ZIMMERMAN people in MA in the 1920 census.   And, about 75 people in MA in 1910.  *     In both years there were a half-dozen or so people with the name in Worcester County.    Most were in Suffolk County those years.     I found one family which is a small possibility,  but in 1910 "Lizzie"  (?)  is 28.   ZIMMERMAN, CHRISTOF   (1910 U.S. Census) MASSACHUSETTS , WORCESTER, CLINTON Age: 59, Male, Race: WHITE, Born: GERM Series: T624 Roll: 627 Page: 138   There were a little over 175 people with the SINCLAIR name in MA in 1920.    But, I don't see any Elizabeth or Lizzie who is a wife or mother.   I don't know why this lady doesn't show up in the Index for the 1920 census,   but she does show up at   www.familysearch.org   Name: Elizabeth A Sinclair Residence: Haverhill City, Essex, Massachusetts Estimated Birth Year: 1881 Age: 39 Birthplace: Massachusetts Relationship to Head of Household: Wife Gender: Female Race: White Marital Status: Married Father's Birthplace: Mother's Birthplace: Film Number: 1820691 Digital Folder Number: 4301087 Image Number: 00504 Sheet Number: 9   Household Gender Age Spouse Percy L Sinclair M 43y   Elizabeth A Sinclair F 39y Child Wendell B Sinclair M 11y Child Irene M Sinclair F 5y   Here is another Elizabeth:   Name: Elizabeth Sinclair Residence: Walden City Ward 4, Middlesex, Massachusetts Estimated Birth Year: 1884 Age: 36 Birthplace: Massachusetts Relationship to Head of Household: Granddaughter Gender: Female Race: White Marital Status: Married Father's Birthplace: Mother's Birthplace: Film Number: 1820713 Digital Folder Number: 4301110 Image Number: 00649 Sheet Number: 9   Household Gender Age Clarence Stickney M 70y Elvira Stickney F 61y Melvin Stickney M 20y Harry J Sinclair M 37y   Elizabeth Sinclair F 36y Elizabeth Sinclair F 8y Elvira Sinclair F 7y Ruth Sinclair F 5y   Betty        (near Lowell, MA)