The best way is to contact a Golf Memorabilia expert, you might try www.Thegolfauction.com They auction off such items and they might help you.
Signed autographThere is no difference between signed memorabilia and autographed memorabilia. It is just deference in terminology. A signed baseball is the same as an autographed baseball and the same value. An autograph is signed. You could sign a check or a document but the signature would not be considered an autograph. You sign a baseball or a photo and the signature is an autograph.
It depends on your overall collection of sports memorabilia and the condition
It is uncertain the value of such memorabilia. However, some would value this item somewhere between $20 and $30 depending upon the date and season from which it came.
Authentic autographed Junior Seau memorabilia & signed collectibles. Junior Seau footballs, helmets, jerseys, photos.
To the right person (Family member) it could be invaluable. To the sports memorabilia collector $30-50
See: WWII memorabilia & collectibles.
The best source to find the value of sports memorabilia is Heritage Sports Collectibles (http://www.heritagesportscollectibles.com). They have many prices listed and you can easily navigate to determine the pricing of your memorabilia. Comparing prices on Ebay can also give you a good general idea on the going price
The value of a John Connally dollar bill autographed by John Connally would depend on the condition of the bill, the clarity and authenticity of the signature, and the demand from collectors. Generally, such an item may have value to collectors of political memorabilia or currency collectors, but the specific value would need to be assessed by a qualified appraiser.
To determine how valuable your memorabilia is a reputable antique dealer/collector to take a look at the items and give you a valuation. If you wish to sell the items get 2or3 valuations. It maybe that, like many others, your treasured memorabilia is worthless in monetary value but priceless to you.
The value of Obama inauguration memorabilia can vary greatly depending on the item and its condition. Items like flags, posters, and clothing can range from a few dollars to a few hundred dollars, while rare or unique items can be worth thousands of dollars to collectors. It's best to research specific items to get an accurate value.
It depends on who it's autographed by.
The value of Kasey Kahne's or anyone else's memorabilia depends on many things like what the memorabilia is, what condition it is in, if it is in it's original container or not, where you are selling it and how much someone is willing to pay for it.