Just having a look at your unanswered requests (you've only joined in April so it's not been that long)-
1)
Gloucester grave stones- you've asked if anyone's heard of a book whose title you can't remember. Difficult to answer without the title but someone might come up with some suggestions
2)
Davies and Pugh at Kerry, Montgomeryshire- probably difficult to find details of the parents of a couple married in 1817 which is why there's been no reply
3)
Vaughan of Melin Griffith married Elizabeth at Lea, Gloucs- looking for maiden name of woman married in 1724- perhaps no records exist
4)
More Evans in Carmarthenshire- again, perhaps no records exist
5)
German ex-pow killed in Moscow traffic 1951- I'd be doubtful that any records would be available online and not having the surname doesn't make ot any easier
6)
Miss Frances Haines - Hampstead Norris- looking for someone born well before 1800 and will probably be difficult to find details
7)
Head married Maskell in Yattendon 1783- same as above
8 )
Sir Kenneth Hill 1870-1890- you've posted this on N.Z. Completed board by mistake (I've asked N.Z. Moderator to move it to the main board for you)
9)
Charles and Ann Howell- looking for a marriage which probably took place before 1767
10)
Elizabeth Jones married John MacGregor 185111)
Russia pre-1917 revolution - Kapirin- Russian reciords for this period will be difficult to track down
12)
John MacGregor 8-1-182013)
Ledgingham Murphy- it's been read 84 times so far so perhaps rthe right person to help just hasn't come along
14)
Thomas Price married Bridget Harries 169815)
Harriet Maria married Jonathan Colebourne 1777, Kintbury16)
Moscow: Kapirin, Pavlov, Spiridonov.- this isn't a forum for tracing living relatives but I suspect the fact that Russian records aren't readily available (online or offline) is the reason no one has replied
17)
Tidbery/Tidbury at Shaw early 1700's "Does anyone have access to Shaw records which might pad out what I already have please?"- possibly not
18)
Isaac, Jacob implications- posted less than an hour ago so not time for replies yet
This is out of over 40 requests in the last 2 months. Your posts are all clear and concise with names, dates and places included and titles are also good so you aren't doing anything wrong but just need to wait for replies. While you're waiting have a look at the Resources on the boards where you've posted (if you haven't done so already) for information and links in that particular county/area.