There are 75 unique plaintiff surnames beginning with H:

Hain	Hains	Hall	Halsey	Hamilton	Hamilton Bank	Hamilton Bank, East Liberty, OH
Hamman	Hampson	Hancock	Hane	Haner	Hardin County Importing Company	Hardy
Harline	Harmon	Harn	Harriette	Harriman	Harriott	Harsh
Harshman	Hartley	Hartwell	Hathaway	Hawkins	Hawn	Hawser
Healy	Hedrick	Heiby Oil Company	Heirs	Heitzler, Harrison and Company	Henderson	Henry
Henry County Bank, Napoleon, OH	Herd	Herdsman	Herriott	Herzog Lime and Stone Company	Hess	Hibbs
Hickenbotham Paint Company	Hiils	Hill	Hills	Hoar, Morgan and Company	Hobart	Hoge
Hollister and Bolt	Holmes	Holt	Holycross	Holycross Music Store	Home Building Savings and Loan Company	Home Loan Company
Hoover	Hopkins and Leonard	Horr	Hoskins	Houck	Houston Merchandise Company	Howard
Howey	Howison	Howser	Hubbell	Huber Manufacturing Company	Huffman	Humphreys
Hunter	Huntington National Bank, Columbus, OH	Hutchinson	Hyder	Hyway Concrete Pipe Company