I finally found Richard Morrissey born 1842 on board a ship called “Northampton” with a sister Nancy Morrissey. She was 20 years of age and Richard was 12. (source: Carol LACKNEY)
Name: Richard Morrissy
Arrival Date: 13 May 1854
Estimated birth year: 1842
Age: 12
Gender: Male
Port of Departure: Liverpool, England
Destination: United States of America
Place of Origin: Ireland
Ship Name: Northampton
Search Ship Database: Search the Northampton in the 'Passenger Ships and Images' database
Port of Arrival: New York
Line: 33
Microfilm Serial: M237
Microfilm Roll: M237_138
List Number: 448
Port Arrival State: New York
Port Arrival Country: United States

Census: 1870 San Francisco, CA
1870 Census shows Richard living with 'Hannah' and four children. Later, information places him at 509 Howard Street, San Francisco (Database: SF, CA Directories 1889-1891) Occupation listed at Blacksmith - obit shows metal worker

1870 San Francisco census
20 738 767 Morrissey Richard 31 M W Laborer Ireland
21 738 767 Morrissey Hannah 35 F W Keeping House Ireland
22 738 767 Morrissey Patrick 6 M W Maine
23 738 767 Morrissey James 3 M W Maine
24 738 767 Morrissey Kate 1 F W Maine
25 738 767 Morrissey Richard 6/12 M W Cal.

from the Hall of Records, Mariposa, CA
Death Cert.
Mariposa Co, CA
Richard Morrisey, DOD Nov. 8, 1916
sex: male race: white marital stat: widowed
dob Mar 3, 1842 age: 74 yrs 7mo 3 day
occup: retired

father: ---------------- bp: Ireland
mother:------------------bp: ---------
length of resid: 12 yrs in CA: 48 yrs
info: Patrick Morrissey, Hornitos, CA

cause: Acute exacebatisis of a chronic
Intertitial Nephritis duration 25 day
signd: D. I. Allen MD, Nov 29, 1916 Merced Falls
pl of burial Hornitos Nov 9, 1916
undertaker Welch, Merced

MORISSEY, Richard November 11, 1916 Mariposa Gazette: AGED HORNITOS RESIDENT DIES THIS WEEK
Richard MORRISSEY, Sr., of Hornitos died at 5 o'clock, Wednesday, at the home of his son, Richard MORRISSEY, Jr., in Hornitos. Death was due to Bright's disease.
Deceased was a native of Ireland, and was 84 years of age. He was a metal worker by trade, and formerely followed that profession for many years in San Francisco. The past five years he made his home with his daughter, Mrs. Kate ROWLAND of Cathey's Valley. He is survived by four sons and one daughter, as follows: Richard and Patrick, of Hornitos; Arthur of San Francisco; James, of Sacramento, and Mrs. Kate ROWLAND, of Cathey's Valley.