Could this be him? Found this posted - I have a copy of a 9 page pamphlet,
"McIlwain Faamily History" compiled by Dr. Robert McIlwain, MD in June 1977
Culver, IN {Indiana}, starting with John McIlwain, Sr. 1762 - 1806 who married Jennie
Houghton. It includes their children and the children of their son John Jr., 1786 -
1862.There are some photographs as well.
Dr Robert Evans McIlwain BIRTH 8 Sep 1898 Grant county Indiana DEATH Jan 1983
Bluffton, Wells, Indiana BURIAL Grant Memorial Park Marion, Grant County, I
ndiana, son of Marion McIlwain & Naomi Blackman
married Eleanor E. Harper BIRTH 15 Oct 1899 Indiana DEATH 31 Mar 1976 South
Bend, St Joseph, Indiana BURIAL Grant Memorial Park Marion, Grant County, Indiana,
daughter of Ira G. Harper & Amelia Strubbe
Children:
1 Neysa McIlwain BIRTH 28 Aug 1928 Indiana, DEATH 18 Jan 1961 Marion, Grant County,
Indiana BURIAL Grant Memorial Park Marion, Grant County, Indiana, married Wendell
Dale Lewark
2 John Harper “Doc” McIlwain BIRTH 30 Sep 1931 Indianapolis, Marion county Indiana, USA DEATH
23 Oct 2015 Fort Wayne Allen county Indiana BURIAL Grant Memorial Park Marion, Grant County,
Indiana married Florence Helen Jarvis
Year: 1930; Census Place: Marion, Grant, Indiana; Page: 7A; Enumeration District: 0012; FHL microfilm: 2340324 Name: Robert E Mcilwain Birth Year: abt 1899 Gender: Male Race: White Age in 1930: 31 Birthplace: Indiana Marital Status: Married Relation to Head of House: Head Home in 1930: Marion, Grant, Indiana, USA Map of Home: Marion, Grant, Indiana Street Address: South Boots Street Ward of City: 4 Pt of House Number: 2107 Dwelling Number: 165 Family Number: 173 Home Owned or Rented: Owned Home Value: 16000 Radio Set: Yes Lives on Farm: No Age at First Marriage: 29 Attended School: No Able to Read and Write: Yes Father's Birthplace: Indiana Mother's Birthplace: Indiana Able to Speak English: Yes Occupation: Physician Industry: independent Class of Worker: Working on own account Employment: Yes Veteran: Yes War: WW Household Members Age Relationship Robert E Mcilwain 31 Head Eleanor E Mcilwain 30 Wife Neysa M Mcilwain 1 Daughter Year: 1940; Census Place: Marion, Grant, Indiana; Roll: m-t0627-01047; Page: 12B; Enumeration District: 27-14 Name: Robert McIlwain [Robert Mc Ilwain] Age: 41 Estimated Birth Year: abt 1899 Gender: Male Race: White Birthplace: Indiana Marital Status: Married Relation to Head of House: Head Home in 1940: Marion, Grant, Indiana Map of Home in 1940: Marion, Grant, Indiana Street: South Boots Street House Number: 2107 Inferred Residence in 1935: Marion, Grant, Indiana Residence in 1935: Marion Sheet Number: 12B Number of Household in Order of Visitation: 328 Occupation: Doctor House Owned or Rented: Owned Value of Home or Monthly Rental if Rented: 9500 Attended School or College: No Highest Grade Completed: College, 5th or subsequent year Hours Worked Week Prior to Census: 48 Class of Worker: Working on own account Weeks Worked in 1939: 52 Income: 0 Income Other Sources: Yes Neighbors: View others on page Household Members Age Relationship Robert McIlwain 41 Head Elenor McIlwain 40 Wife Neyse Marie McIlwain 11 Daughter John McIlwain 8 Son Ben Forebush 16 Lodger Mattie R Arnet 53 Housekeeper World War II Draft Cards Young Men, 1940-1947 Name: Robert Evans McIlwain Gender: Male Race: White Age: 43 Relationship to Draftee: Self (Head) Birth Date: 8 Sep 1898 Birth Place: Grant, Indiana Residence Place: Marion, Grant, Indiana, USA Registration Date: 16 Feb 1942 Registration Place: Indiana, USA Employer: Self Weight: 170 Complexion: Light Eye Color: Blue Hair Color: Blonde Height: 5 11 Next of Kin: Eleanor McIlwain Indiana, U.S., Death Certificates, 1899-2011 Name: Eleanor Harper McILWAIN [Eleanor Harper Harper] Gender: Female Race: White Age: 76 Marital status: Married Birth Date: 15 Oct 1899 Birth Place: Indiana Death Date: 31 Mar 1976 Death Place: South Bend, St Joseph, Indiana, USA Father: Ira Harper Mother: Amelia Harper Spouse: Dr Robert McIlwain Social Security Death Index, 1935-2014 Name: Eleanor McIlwain Social Security Number: XXX-XX-XXXX Birth Date: 15 Oct 1899 Issue Year: 1963 Issue State: Indiana Last Residence: 46511, Culver, Marshall, Indiana, USA Death Date: Mar 1976 U.S., Social Security Death Index, 1935-2014 Name: Robert McIlwain Social Security Number: XXX-XX-XXXX Birth Date: 8 Sep 1898 Issue Year: 1955 Issue State: Indiana Last Residence: 46511, Culver, Marshall, Indiana, USA Death Date: Jan 1983 Indiana, U.S., Death Certificates, 1899-2011 Name: Robert E. McIlwain Gender: Male Race: White Age: 84 Marital status: Widowed Birth Date: 8 Sep 1898 Birth Place: Indiana Death Date: 18 Jan 1983 Death Place: Bluffton, Wells, Indiana, USA Father: Marion McIlwain Mother: Naomi McIlwain Maiden Name: Blackman