Looking for descendants of the following 3 sisters:

Margaret Mckinlay b 1872 Maryland married Christopher Downey newspaper reporter with children Margaret Helen Downey b 1898, Marion Downey b 1900, Kenneth Downey b 1902,

Marion (Minnie) Dobbie married Joseph Laird in Maryland but subsequently moved to Waterbury with children, Joseph Laird b 1884, Clarence Laird b 1887, Margaret Laird b 1890, Anna Laird b 1892 (married Franklyn Sedgwick), Marion Laird b 1896.

Isabella Mckinlay married John Sutherland and had 2 children, Donald Campbell Sutherland b 1900, Douglas J Sutherland b 1905.

Any information is welcome. I have them all on the 1900 and 1920 censuses but not in 1930.

1930 Census - 1739 Baldwin St., Waterbury, New Haven Co., CT
Margaret Downey, 60, divorced, married @27, b. MD, parents b. Scotland
Helen, 32, b. CT, father b. Ireland, mother b. MD, stenographer
Marion, 30, b. CT, father b. Ireland, mother b. MD, teacher,
grammer school
Kenneth, 26, b. CT, father b. Ireland, mother b. MD, teacher, grammer school

1930 Census - 87 Rose St., Waterbury, New Haven Co., CT
Isabelle Sutherland, 58, married @24, widow, b. MD, parents b. Scotland
Douglas J, 25, b. CT, father b. Scotland, mother b. MD, instructor

Naugatuck, Conn. Daily News - Saturday, April 23, 1927
Mrs. Joseph Laird
Mrs. Marion P. Laird, widow of Joseph Laird, died yesterday morning at her home, 1741 Baldwin Street in Waterbury
Mrs. Laird was a native of Maryland but had lived in Waterbury for the past 28 years. She was a communicant of St. John's Church and was a member of Naomi Chapter, Order of the Eastern Star, and of the New England Order of Protection. She is survived by one son, Joseph Laird; two daughters; Mrs. Frank H. Hard of Naugatuck and Mrs. Frank Sedwick of Waterbury and two sisters; Mrs. C.E. Downey and Mrs. John Sutherland, both of Waterbury. Another son, Clarence, died last December and another daughter, Miss Marian H. Laird about a year ago. The funeral services will be held tomorrow afternoon at 3 o'clock daylight savings time at St. John's Church, Rev. De. John N. Lewis officiating. The burial will be in Pine Grove Cemetery.

I found a death record for a Margaret E Downey
81 yrs. old
b. about 1870
d. 6-26-1951, Waterbury, CT

A little more -
Margeret E Laird married Frank Nelson Hard. They were married between 1910-1917. They lived in Naugatuck. Frank owned a variety store which he had bought from his father and it was located at 156 Church St. in Naugatuck. They lived at 235 Maple St. in Naugatuck. It looks as if they didn't have any children. You can find them in the 1920 & 1930 census in Naugatuck. Frank died 11-12-1949 in Waterbury. Interesting that it shows he was never married. Both the WWI & WWII record shows he was along with the census records. I cannot find when Margaret died but she is still shown in the 1962 directory. I could not find a death record for her or for Frank.
Margaret is shown buying a lot on Walnut St. in 1923 from a Mary Donnelly

Thank you so much for all that information!
It is kind of you to have gone to all that trouble and it is very much appreciated.

That is interesting about Frank's apparent marital status at his death; I wonder what the story is there?
None of the offspring seem to have produced many - or even any - children which is disappointing too!

Many thanks again for filling in these blanks for me.