With a surname of Smith it's VERY important to be sure you've found the correct people and made the correct connections. In 1880 the Smith family was living in Ridgefield, Bergen, New Jersey.
Rudolph H. Smith, b. NY, 39, no occupation.
Louise Anna, wife, b. NY, 37.
Harry R., b. NY, 14.
Eugene M., b. NY, 12.
Maggie, b. NY, 10.
George W., b. NJ, 7.
Herbert M., b. Nj, 5.
Cornelia E., b. NJ, 3.
William F., b. NJ, 9/12ths.
In 1895 the family was living in Girard, Otter Tail, Minnesota.
Rudolph H. Smith, 54.
Louise A., wife, 51.
George A., 22.
Herbert M., 19.
William A. 15.
Anne L., 12.
Note that Herbert's middle initial is M on both Census records.
Name: Herbert Bertrum Smith
On Sept. 12, 1911 was living in Kooskia, Idaho, ID
Born: 7 March 1875
Occupation: Laborer ____, Kooskia Milling ____
Wife: Ethel Smith
I don't know if this is the same person as Herbert M. Smith or not. I looked up in the Western States Marriage Index and there was no marriage for Herbert M. Smith.
Name: Herbert Moses Smith
Born: 7 March 1875
Died: Kooskia, Idaho Co. per 149914
Source: Idaho Death Index 1911-51.
I didn't find any death info for Herbert Bertrum Smith.
What that all means is unless you know them to be the same person there's no point in concluding Herbert Moses Smith married Ethel.
Herbert Moses Smith died in 1946 and his obituary won't have current enough survivors to be able to find current survivors in Kooskia.
Anna Louise Laird b. April 26, 1883 and died March 23, 1913, Kooskia, Idaho, ID. Source: Brigham Young University-Idah Death Index.
I couldn't find her marriage to Harry A. Laird.
I did find Harry, Anna and children in 1910 in Stuart, Idaho, Idaho.
Harry A. Laird, b. KS, 35, marr 10 yrs, mail carrier government.
Anna L., wife, b. NJ, 26.
Heloise R., b. ID, 7.
Doris E., b. ID, 6.
An Harry Arthur Laird
Born: Nov. 4, 1897
Died: April 19, 1920 in Kellogg, Shoshone, ID per death cert 030266.
Source: Brigham Young University-Idaho Death Index.
However, this Harry can't be the one married to Anna because the one above was born in 1897 and her Harry was born abt. 1875.
I didn't find any other entries for their daughters.
You don't have any related persons who died late enought to look up their obituary and then try to contact their survivors.
You can access spokeo or zabasearch and look up Smith and contact each one and ask them if they're descended from Rudolph. Kooskia is a small town so maybe that would work.