Use the free search tool at https://familysearch.org/ and plug in the names/dates/locations for more on these famililes. Asher W was the son of Asher Curtis and Mary Long Chamberlain. Their parents - his grandparents - and siblings - aunts/uncles etc. can be be found in census data below. His father was a Ship Carpenter, his brother was listed as a Sea Captain. Many more records are listed on that site for the individuals in these families.
U S Census, 1900 ED 89 Dagsboro Hundred , Frankford, Dagsboro, Millsboro towns, Sussex, DE
Citing this Record "United States Census, 1900," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/M31T-S1D
Head Mary A Chamerlin F 39 Jan 1861 Delaware Widow
Son Asher W Chamerlin M 15 Delaware
Daughter Virginna H Chamerlin F 12 Delaware
Son David J Chamerlin M 10 Delaware
Son Narwood Chamerlin M 3 Delaware
Daughter Mirian Chamerlin F 1 Delaware
Delaware, State Birth Records, 1861-1922
Citing this Record "Delaware, State Birth Records, 1861-1922," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/FLJP-DB5
Sallie A Chamberlain
Birth 01 Jul 1879 Frankford, Sussex, Delaware
Female White
Father Asher Curtis Chamberlain
Mother Mary Ann Long
Citing this Record "Delaware, State Birth Records, 1861-1922," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/FLVS-7TG
Miriam Chamberlain
Birth 19 Sep 1899 Frankford, Sussex, Delaware
Female White
Father Asher Curtis Chamberlain Age 47 Birthplace Frankford, DE Carpenter
Mother Mary Anne Long Age 38 Birthplace Frankford, DE Housewife 7 children 6 living
Reported by Virginia Chamberlain Peters sister
This page has the 1860 Census with Asher C living with George b 1813 and Lydia b. 1813 DE
https://familysearch.org/search/record/results#count=20&query=%2Bsurname%3Achamberlain~%20%2Bresidence_place%3A%22Sussex_code%2C%20Delaware%22~%20%2Bresidence_year%3A1860-1860~
This page below has many more records on Asher Curtis and Mary Long Chamberlain. In 1870 Asher C is living with the Long family included Mary, her parents and siblings.
https://familysearch.org/search/record/results#count=20&query=%2Bgivenname%3A%22asher%20curtis%22~%20%2Bsurname%3Achamberlain~%20%2Bbirth_place%3ADE~%20%2Bbirth_year%3A1850-1865~%20%2Bspouse_givenname%3A%22mary%20ann%22~%20%2Bspouse_surname%3Along~
This page has records on George and Lydia Chamberlain
https://familysearch.org/search/record/results#count=20&query=%2Bgivenname%3Ageorge~%20%2Bsurname%3Achamberlain~%20%2Bbirth_place%3Ade~%20%2Bbirth_year%3A1810-1815~%20%2Bspouse_givenname%3Alydia~