<fieldType name="edgytext" class="solr.TextField" positionIncrementGap="100">
   <analyzer type="index">
     <tokenizer class="solr.KeywordTokenizerFactory"/>
     <filter class="solr.LowerCaseFilterFactory"/>
		 <filter class="solr.PatternReplaceFilterFactory" pattern="([^a-z])" replacement="" replace="all" />
     <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt" enablePositionIncrements="true" />
     <filter class="solr.EdgeNGramFilterFactory" minGramSize="1" maxGramSize="25" />
   </analyzer>
   <analyzer type="query">
     <tokenizer class="solr.KeywordTokenizerFactory"/>
     <filter class="solr.LowerCaseFilterFactory"/>
		 <filter class="solr.PatternReplaceFilterFactory" pattern="([^a-z])" replacement="" replace="all" />
     <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt" enablePositionIncrements="true" />
   </analyzer>
  </fieldType>

Example:

Querystring: "Wolfgang Am"

Results:

"Wolfgang Johannsen"
"Wolfgang Amadeus Mozart"
"Wolfgang Something"