Samuel Howland b. 1810 NY (Onondaga per 1845 NY census)
m. Caroline Davis b.1811 d. 4 nov 1846 Sackett's Harbor Cem. (dau of Jonathan Davis and Caroline Clark)
Samuel died in Kane County Illinois in 1865.

1840 federal census for the town of Pitcairn NY shows a household w. Saml. "Holland" (age between 20 and 30), an adult woman (20 - 30), a boy (5-10) and a girl ( < 5) This matches the given birthdates of Samuel Howland 1810, his wife Caroline (Davis) 1811, his son Clark Davis Howland b. 1834 and Clark's sister Mary Jane b. 1839....

Other helpful information: Hannah Howland Maxam born in 1806 died in Twinsburgh, OH in 1871. I believe she is Samuel's sister for several reasons. Samuel lived there during the 1850 census (after his wife died in 1846) and Hannah's son Lewis married Samuel's daughter Mary Jane in Kane County IL prior to moving with Samuel's son Clark out to Nebraska.

The chronicle of Hannah's son Alonso Maxam states that Hannah's father (presumed Samuel's father) was of Welsh ancestry and died at "Greenbush", in NY during the War of 1812. No first name given.

Land records suggesting Samuel Howland.
7 JANUARY 1841 (45C p 399) Joseph Pitcairn of NYC and Samuel Howland of St Lawrence Co for $209 buys 69 acres twp #11 great tract three of the McComb Purchase

1842 12 NOVEMBER ( Book 45C 422 ) Samuel Howland of Hounsfield, Jefferson County NY and His wife Caroline ! and Benjamin Green for $377 paid to same. Part of Lot 25 in twp 11 Great Tract 3 McComb's purchase 69 acres

1844 9 NOVEMBER between James N Holbrook of Hounsfield, Jefferson and Samuel Howland of the same place piece of land in Sackett's harbor,Jefferson County on Main street.

Any help appreciated.