The family of Johann 'John' Adam Daub emigrated from 'Deutschland' to New York City, in the fall of 1840:

Johann 'John' Adam DAUB, age 41,b. circa 1799;
Barbara UNKNOWN DAUB, age 30, b. circa 1810;
Children living as of October 14, 1840:
Phillippe Jacob DAUB, age 12, b. circa 1828;
Johan[n] 'John' Adam [Jr.] DAUB, age 11, b. circa 1829;
Appelonia 'Effy' DAUB, age 8, b. circa 1832;
Franz 'Frank' DAUB, age 7, b. circa 1833;
Theresia DAUB, age 4, b. circa 1836;
Richard DAUB, age 2, c. circa 1838;
Marie DAUB, age 1/4, b. circa 1840;

This family group departed from [Le] Havre, arrived in New York City, on October 14, 1840, country of departure-Deutschland, and were enumerated on the ship manifest of the Ville de Lyon [of American origin];

Source Citation & Source Information:
[Johann Adam DAUB]. Family ID #: 30031425; Microfilm Serial #: M237; Microfilm Roll Number: 44.

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by 1842, they were residing in Pennsylvania;
Anton 'Anthony' DAUB, b. 1842, Pennsylvania;
K[C]atha[e]rine DAUB, b. 1844, Pennsylvania;
Lawrence DAUB, b. 1847, Pennsylvania;

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by 20 September 1850 the family of Johann 'John' Adam DAUB, b. circa 1799 Germany was enumerated residing in Millcreek Township, Erie County, Pennsylvania, as the second family residing in the same physical address: # 18 / # 21.

Source Citation & Source Information:
1850. 20 Sep 1850. M432_778; Page: 256; Image: 6; Household # 18 / # 21.

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by 20 September 1850, [their son] Johan[n] 'John' Adam DAUB, age 21, b. circa 1829, Germany, was married & working as an oil cloth maker; he declared personal wealth valued at $300. Wife, Caroline/[a] [H.] UNKNOWN, age 18, born circa 1832 Prussia was also enumerated in the same household, as the third family enumerated living at this physical address: # 18 / # 22.

Source Citation and Source Information:
1850. 20 Sep 1850. M432_778; Page: 256; Image: 6; Household # 18 / # 22.

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in addition, the family of George LEICH, age 22, b. circa 1828 Germany, peddler; declared personal worth valued at $300; his wife, Rachel [Catherine DAUB??] LEICH, age 22, born circa 1828 Germany; and son, Dauphin LEICH, age 7 mos/12 mos, born circa 1850 Pennsylvania, USA; was enumerated as the first family living at this physical address: # 18 / # 20.

Source Citation and Source Information:
1850. 20 Sep 1850. M432_778; Page: 256; Image: 6; Household # 18 / # 20.

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of interest....
Catherine DAUB, age 21, emigrated from 'Deutschland' to New York City, USA, departing from [Le] Havre, and arriving on June 18, 1840, aboard the ship, Ville de Lyon.

Source Citation and Source Information:
[K]Catharine DAUB. Family ID #: 30017455; Microfilm Serial #: M237. Microfilm Roll Number: 42.

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and further, the family of Lawrence LEICH, age 50, born circa 1800, Germany, and his wife, Catherine UNKNOWN LEICH, age 49, born circa 1801 Germany, and their children: Elizabeth, LEICH, age 20; William LEICH, age 13; Catherine LEICH, age 9; Mary LEICH, age 6 and Felina LEICH, age 3, were enumerated residing as direct neighbor, household # 17 / # 19, to the three family household enumerated above, which included [son] George LEICH, age 22...

Source Citation and Source Information:
1850. 20 Sep 1850. M432_778; Page: 256; Image: 6; Household # 17 / # 19.

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Would like to correspond with any researchers documenting this family and their migration from [?] Germany to USA: New York > Pennsylvania > Wisconsin > Indiana > Iowa > California >Georgia, etc.....